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• Solved: Some details about the issue. I'm trying to connect to my client's network using VPN Client version 5.0.07.0290. The user authetication is done by providing RSA SecureID token value.
• To work around error 442, do the following steps: Step 1 Open 'Network and Sharing Center'. Step 2 Select 'Manage Network Connections'. Step 3 Enable the Virtual Adapter ('VA'—Cisco VPN Adapter).

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Release Notes for Cisco VPN Client, Release 5.0.07.0291-FIPS

These release notes address the following subjects:

•Introduction

•System Requirements

•Limitations of the FIPS Release

•Licensing Requirements for the FIPS-Compliant VPN Client

•Installation Notes

•Advisories for Windows Vista Users

•Usage Notes

•Known Caveats

•Resolved Caveats

•Related Documentation

Introduction

These release notes are for the CiscoFIPS-compliant VPN Client, Release 5.0.07.0291-FIPS. The name of the file on the software download site is vpnclient-win-msi-5.0.07.0291-k9.exe.

Note The Cisco FIPS-compliant VPN Client is based on the Cisco VPN Client, Release 5.0.07.
If you do not require FIPS compliance for your organization, please download the standard release of the Cisco VPN Client.

The Federal Information Processing Standard (FIPS) 140-2 is a U.S. government standard for specific security requirements for cryptographic modules. This standard applies to all federal agencies that use cryptographic-based security systems to protect sensitive information in computer and telecommunication systems.

The VPN Client creates a secure connection over the Internet between a remote PC and an enterprise or service provider Cisco VPN device. This connection lets you access a private network as if you were an on-site user.

This document identifies the system requirements, limitations and restrictions, known issues, resolved caveats, and related documentation. Please read it carefully prior to installation. The section, 'Usage Notes,' describes interoperability considerations and other issues you should be aware of when installing and using the VPN Client.

System Requirements

VPN Client 5.0.07 supports the following Microsoft OSs:

•Windows 7 on x86 (32-bit only)

•Windows Vista on x86 (32-bit only)

•Windows XP on x86

VPN Client does not support the Tablet PC 2004/2005; and Windows 2000, NT, 98, and ME.

VPN Client supports smart card authentication on Windows 7, Vista, and XP.

VPN Client supports up to one Ethernet adapter and one PPP adapter.

VPN Client 5.0.x is incompatible with the combination of Cisco Unified Video Advantage 2.1.2 and McAfee HIPS Patch 4 Build 688. To avoid system failures, uninstall either of these two applications, upgrade McAfee to the latest version, or use VPN Client 4.6.x.

To install the VPN Client, you need

•Pentium®-class processor or greater

•Microsoft TCP/IP installed. (Confirm via Start > Settings > Control Panel > Network > Protocols or Configuration.)

•50 MB hard disk space.

•128 MB RAM
(256 MB recommended)

•Administrator privileges

The VPN Client supports the following Cisco VPN devices:

•Cisco Series 5500 Adaptive Security Appliance, Version 7.0 or later.

•Cisco VPN 3000 Series Concentrator, Version 3.0 or later.

•Cisco PIX Firewall, Version 6.2.2(122) or Version 6.3(1).

•Cisco IOS Routers, Version 12.2(8)T or later.

Limitations of the FIPS Release

This FIPS release of the Cisco VPN Client has the following limitations:

•Transforms—The FIPS Client only allows AES (128, 192, 256) and SHA-1 transforms.

•Certificates—The FIPS Client only supports certificates that use AES and SHA-1 signatures. The release only supports certificate functionality with the Microsoft CAPI certificate store and does not support any certification functionality that uses the Cisco certificate store. In addition, the Certificate tab of the Client GUI and its menu has been removed and does not appear to users.

Licensing Requirements for the FIPS-Compliant VPN Client

The Cisco FIPS-compliant VPN client is licensed based on the ASA 5500 Series Adaptive Security Appliance model. Each security appliance model requires a different license. The license does not affect the number of allowed concurrent VPN sessions.

The following table shows the Product numbers (also called SKUs) of the licenses for each security appliance model:

Note Each new security appliance model purchased after August 31st, 2009 requires a FIPS-compliant VPN client license. Cisco customers with current SMARTnet contracts who purchased an ASA 5500 Series Adaptive Security Appliance before August 31st, 2009 are not required to purchase a license for these specific appliances and may contact the Cisco TAC for information on upgrade rights for the FIPS-compliant VPN client.

Installation Notes

Refer to 'Cisco VPN Client User Guide for Windows, Chapter 2, for complete installation instructions for Windows users.

Note Due to issues surrounding network installation, Active Directory Group Policy software deployment is no longer supported. For more information and a workaround, refer to open caveat CSCse00525.

Installation Notes - Windows Platforms

Please note the following installation considerations for Windows users

Avoiding Vista Problems with the TCP/IP Registry Compatibility Service and the VPN Virtual Adaptor

To avoid problems with the TCP/IP Registry Compatibility service and the VPN Virtual Adaptor, we strongly recommend that Windows Vista users install Vista SP2 or later.

For more information about a previous hotfix for this problem, go to this URL:

Upgrading from Windows XP Requires a Clean Installation

After upgrading Windows XP to Windows Vista, one experiences various problems with the VPN Client, ranging from client not logging, client won't connect, virtual adapter not installing, and so on. Upgrading from a clean install of Windows XP to Vista has been tested and the VPN Client does work in this situation.

However, upgrading a Windows XP installation with legacy applications ranging from Firewalls, Antivirus, device drivers, and so on to Windows Vista is not supported, because the problems stem from the legacy applications no longer supported by the OS.

Installing the VPN Client Software Using the MSI Installer

You can use the MSI installer on Windows Vista and XP. Installing with MSI requires administrator privileges.

Before installing the Windows MSI installation package, you must manually uninstall the previous VPN Client if it is older than Release 4.7. The MSI installer does not uninstall the older versions; it attempts to install before aborting gracefully. Once a version 4.7 MSI package has been installed on Windows XP, future client versions can detect the release present and automatically begin the uninstallation process.

Upgrading the VPN Client Software on Windows Vista

For Windows Vista, please use add/remove programs to uninstall the VPN Client before upgrading to a new Client release.

Using the VPN Client

To use the VPN Client, you need:

•Direct network connection (cable or DSL modem and network adapter/interface card), or

•Internal or external modem

To connect using a digital certificate for authentication, you need a digital certificate signed by one of the following Certificate Authorities (CAs) installed on your PC:

•Entrust Technologies (www.entrust.com)

•Netscape (www.netscape.com)

•Verisign, Inc. (www.verisign.com)

•Digital certificate stored on a smart card. The VPN Client supports smart cards via the MS CAPI Interface.

The VPN Client accepts a blank password for certificate retrieval, but should not.

About Version Numbers

VPN Client software uses an all-numeric version numbering system to facilitate the automatic update function. Release numbers are represented in the format:

<major release>.<minor release>.<sustaining release>.<build>

The major and minor release numbers represent the feature level of the product. Major and minor releases implement new product capabilities. The sustaining and build release numbers represent significant or minor patch levels, respectively. For example, 5.0.01.06000 represents feature release 5.0.01, build 600.

All sustaining and build releases are cumulative; however, we do not release all build numbers. The build number for this release is 5.0.07.0291.

Advisories for Windows Vista Users

Windows Vista users should be aware of the following characteristics of the Cisco VPN Client.

Connection Time

Using the VPN Client to connect a PC running Vista system might take longer than one running Windows XP. The actual time it takes to connect might vary from customer to customer.

Unsupported Features

The Cisco VPN Client for Windows Vista does not support the following features:

•Upgrade from Windows XP (clean OS installation required).

•Start Before Logon

•Integrated Firewall

•InstallShield

•AutoUpdate

Usage Notes

This section lists issues to consider before installing VPN Client Release 5.0.07.

In addition, you should be aware of the known caveats in this release. Refer to 'Known Caveats' on page 16 of this document for the list of known problems.

Note Support for this release is provided through the Cisco TAC for customers with SMARTnet support contracts.

Split DNS with Wildcards

A split-dns value containing wildcards can cause a system failure when a Windows user accesses certain URLs. For example, the split-dns value a,b,c,d,e,f,g,h,i,j,k,l,m,no,p,q,r,s,t,u,v,w,x,y,z can cause a system failure. To avoid these failures, move the VPN adapter to the top of the binding order list of network adapters. Note that Split DNS requires entries only for internal domains.

Potential Compatibility Issues

You might encounter the following compatibility issues when using the VPN Client with specific applications. Whenever possible, this list describes the circumstances under which an issue might occur and workarounds for potential problems.

Windows Interoperability Issues

The following known issues might occur with the indicated Microsoft Windows operating systems and applications software.

Microsoft Internet Connection Sharing Incompatible

The VPN Client is not compatible with Microsoft ICS (Internet Connection Sharing (ICS) on the same PC.

VPN Client Cannot Launch Microsoft Connection Manager

The VPN Client does not detect a dialup connection made with Microsoft Connection Manager because of incompatibilities between the requirements of the two applications.

Microsoft MSN Installation

Microsoft's MSN installation fails if you have already installed the VPN Client. Uninstall the VPN Client before you install MSN. After MSN has completed installation, you can install the VPN Client.

WINS Information Might Not Be Removed from Windows Servers If Not Disconnected Before Shutdown

If the VPN Concentrator is configured to send WINS server addresses to the VPN Client and the PC is shut down or restarted without first disconnecting the VPN Client, the WINS servers are not removed from the network properties. This might cause local PC registration and name resolution problems while not connected with VPN.

To work around this problem, do one of the following:

•Be sure to disconnect the VPN Client before shutting down. If you are having problems, check your network properties and remove the WINS entries if they are not correct for your network.

•Alternatively, enable 'Disconnect VPN connection when logging off'. Go to Options > Windows Logon Properties, check Disconnect VPN connection when logging off.

DNS

For DNS resolution, if the DOMAIN NAME is not configured on the network interface, you must enter the fully qualified domain name of the host that needs to be resolved.

Network Interfaces

•The VPN Client does not support Point-to-Point Protocol over ATM (PPPoA).

•The VPN Client cannot establish tunnels over Token Ring. However, it does not conflict with an installed Token Ring interface.

•The VPN Client on Windows 7 does not support WWAN devices (also called wireless data cards).

Microsoft Outlook Error Occurs on Connect or Disconnect

The following Microsoft Outlook error might occur when the VPN Client connects or disconnects:

'Either there is no default mail client, or the current mail client cannot fulfill the messaging request. Run Microsoft Outlook and set it as the default mail client.'

This message does not affect operation of the VPN Client. The issue occurs when Microsoft Outlook is installed but not configured for email, although it is the default mail client. It is caused by a Registry Key that is set when the user installs Outlook.

To eliminate this message, do one of the following:

Cisco Vpn Client Download

•Right-click the Outlook icon, go to Properties, and configure it to use Microsoft Exchange or Internet Mail as the default mail client.

•Use Internet Explorer to configure the system to have no default mail client.

•Configure Outlook as the default mail client.

Adjusting the Maximum Transmission Unit (MTU) Value - Windows Only

VPN Encapsulation adds to the overall message length. To avoid refragmentation of packets, the VPN Client must reduce the MTU settings. The default MTU adjusted value is 1300 for all adapters. If the default adjustments are not sufficient, you may experience problems sending and receiving data. To avoid fragmented packets, you can change the MTU size, usually to a lower value than the default. To change the MTU size, use the VPN Client SetMTU utility. If you are using PPPoE, you may also have to set the MTU in other locations. Refer to the following table for the specific procedures for each type of connection.

The MTU is the largest number of bytes a frame can carry, not counting the frame's header and trailer. A frame is a single unit of transportation on the Data Link Layer. It consists of header data, plus data that was passed down from the Network Layer, plus (sometimes) trailer data. An Ethernet frame has an MTU of 1500 bytes, but the actual size of the frame can be up to 1526 bytes (22-byte header, 4-byte CRC trailer).

Recognizing a Potential MTU Problem

If you can connect with the Cisco VPN Client but cannot send or receive data, this is likely an MTU problem. Common failure indications include the following:

•You can receive data, such as mail, but not send it.

•You can send small messages (about 10 lines), but larger ones time out.

•You cannot send attachments in email.

Setting the MTU Value

If you do not experience a problem, do not change the MTU value. Usually, an MTU value of 1300 works. If it does not, the end user must decrease the value until the Cisco VPN Client passes data. Decrement the MaxFrameSize value by 50 or 100 until it works.

The following table shows how to set the MTU value for each type of connection.

Cert DN Matching Cannot Match on Email Field EA

You cannot match the Cert DN field (EA) when using the Peer Cert DN Verification feature on the VPN 3000 Concentrator because the VPN 3000 Concentrator does not assign a value to that field.

VPN Dialer Application Can Load During OS Shutdown or Restart

When using the VPN Client Start Before Logon feature in 'fallback' mode, the VPN dialer application loads during a shutdown or restart of the operating system. This does not cause any problems and can be ignored.

America Online (AOL) Interoperability Issues

The following interoperability issues apply to AOL dialup connections only.

AOL Versions 5.0 and 6.0

The VPN Client supports AOL Version 5.0. AOL Version 6.0 is also supported, with one limitation: when connected, browsing in the network neighborhood is not available.

AOL Version 7.0

AOL Version 7.0 uses a proprietary heartbeat polling of connected clients. This requires the use of split tunneling to support the polling mechanism. Without split tunneling, AOL disconnects after a period of time between 5 and 30 minutes.

AOL 7 Disconnects after VPN Authentication

When making a dialup connection with AOL 7.0 Revision 4114.537, then attempting to connect with the VPN Client, AOL might disconnect while the user is being authenticated. This is an AOL issue, not a VPN Client problem (CSCdy45351).

VPN Client Fails to Connect over Some AOL Dialup Connections

The Cisco VPN Client connecting over an AOL dialup connection fails to complete the connection, particularly when using AOL 7.0 and 8.0.

The AOL dialup process uses a fallback method which, if your initial attempt to connect fails, resorts to a different connection type for the second attempt. This second attempt can sometimes cause AOL to communicate over two PPP adapters (visible in ipconfig /all output). When this happens, the VPN Client cannot connect. This is a known issue, and AOL is investigating the problem.

To work around this issue, try to reconnect the dialup connection and try to avoid getting two PPP adapters.

ZoneAlarm Plus Versions 3.1.274 and Earlier Are Incompatible with VPN Client

The following known incompatibility exists between the Cisco VPN Client and Zone Labs ZoneAlarm Plus version 3.1.274 and earlier. If you are using such a version of ZoneAlarm Plus, please visit http://www.zonelabs.com or contact your Zone Labs representative for an update.

On a PC with ZoneAlarm Plus version 3.1.274 (or earlier) and the VPN Client, errors similar to the following occur when the PC boots:

ZAPLUS.exe has generated errors and will be closed by Windows. You will need to restart the program.

Cisco Vpn Client 442 Free

An error log is being generated.

The Application Log records a message similar to the following:

The application, ZAPLUS.EXE, generated an application error. The error occurred on 7/23/2002... The exception was c0000005 at address 00401881 (<nosymbols>).

The result of such errors is that the ZoneAlarm GUI does not run, and therefore a user cannot change any settings in ZoneAlarm Plus or allow new programs to access the Internet. (CSCdy16607).

CheckPoint ZoneAlarm (Integrity Agent) Is Incompatible with VPN Client

The VPN Client is not compatible with the software firewall provided with ZoneAlarm (Integrity Agent) v8.0.298. (CSCtc46109)

Auto-update Package No Longer Supported

VPN Client does not support the auto-update package for versions higher than 5.0.3.0560.

Close Client before Hibernation

Windows Vista leave the client hanging while it attempts to disconnect upon awakening after hibernation. To avoid this issue, close the client interface before hibernation and reopen it upon awakening.

Upgrading Zone-Alarm Pro to Version 3.7.098 Causes Error When VPN Client Is Already Installed on the PC

Upgrading ZoneAlarm Pro version 3.5.xxx to ZoneAlarm Pro version 3.7.098 when the VPN Client is installed on the PC might cause the following error to appear:

'The procedure entry point DbgProcessReset could not be located in the dynamic link library VSUTIL.dll.'

Click OK. The installation continues. See ZoneLabs bug number 10182.

DHCP Route Renewal

If the public network matches the private network (for example, a public IP address of 192.168.1.5, with a subnet mask of 255.255.0.0, and an identical private IP address) and the public network route metric is 1, traffic might not be tunneled to the private network. The same problem can occur if you are using a virtual adapter and the public metric is smaller than the virtual adapter metric.

In Windows Vista, you can increase the metric of the public network as follows:

Step 1 Select Start > Control Panel > (Network and Internet) > View Network Status and Tasks.

Step 2 Right-click the icon representing the public interface and select Properties.

Step 3 Select Internet Protocol Version 4 and click Properties.

Step 4 Click Advanced in the General tab, and set the interface metric to 2 or greater.

In Windows XP, you can increase the metric of the public network as follows:

Step 1 Select Start > Settings > Control Panel > Network and Dial-up Connections.

Step 2 Select the public interface and click properties for the public interface.

Step 3 Select Internet Protocol (TCP/IP) and get the properties for the Internet Protocol (TCP/IP).

Step 4 Click Advanced, and set the interface metric to 2 or greater.

Windows XP Only—Data Meant for Private Network Stays Local if VPN Client Local Network Is on Same IP Subnet as Remote Private Network

This problem occurs only with the VPN Client, Release 4.6 and only with Virtual Adapter on Windows XP when the VPN Client local network is on the same IP subnet as the remote private network. When a VPN connection is up, data meant for the private network stays local. For example: 192.168.1.0/255.255.255.0

Beginning with VPN Client, Release 4.6, the Virtual Adapter attempts to modify local route metrics to allow data to pass over the VPN tunnel. In some cases, it is impossible for the VPN Client to make this modification.

To work around this problem, make the change manually, using the following procedure:

Step 1 Run > Control Panel > Network and Dialup Connections.

Step 2 Right-click on the adapter in question and select Properties.

Step 3 From the Adapter Properties dialog, select TCP/IP from the list and click Properties.

Step 4 Click Advanced and increase the number in the 'Interface metric' box by 1 (it is usually 1, so making it 2 works).

Step 5 Click OK to exit out of all dialogs.

Step 6 The VPN connection should now work.

DNS Server on Private Network with Split DNS Causes Problems

When an ISP DNS server is included in the Split Tunneling Network List and Split DNS Names are configured, all DNS queries to domains other than those in the Split DNS Names list are not resolved.

By definition, split DNS is used so that only certain domains get resolved by corporate DNS servers, while rest go to public (ISP-assigned) DNS servers. To enforce this feature, the VPN Client directs DNS queries that are about hosts on the Split DNS Names list to corporate DNS servers, and discards all DNS queries that are not part of the Split DNS Names list.

The problem is when the ISP-assigned DNS servers are in the range of the Split Tunneling Network List. In that case, all DNS queries for non-split-DNS domains are discarded by the VPN Client.

To avoid this problem, remove the ISP-assigned DNS server from the range of the Split Tunneling Network List, or do not configure split DNS (CSCee66180).

No Limit to Size of Log File

When logging is enabled on the VPN Client, all of the log files are placed in the Program FilesCisco SystemsVPN Clientlogs directory and are date and time stamped. There is no limit to the size of the log when logging is enabled. The file will continue to grow in size until logging is disabled or the VPN Client program is closed. The log is still available for viewing until the VPN Client program is re-launched, at which time the display on the log tab and log window are cleared. The log file remains on the system and a new log file is created when the VPN Client, with logging enabled, is launched.

Start Before Logon and Microsoft Certificate with Private Key Protect Fails

Trying to connect the VPN client using Start Before Logon (SBL) and Microsoft Machine-based certificates fails. This failure is a Microsoft issue, not a VPN Client problem.

If your certificate has private key protection enabled, every time you use the certificate keys you are either prompted for a password to access the key, or notified with a dialog and asked to click OK.

The prompt displayed when using a certificate with private key protection appears on the Windows Desktop. You do not see this message while at the Logon desktop, therefore the VPN Client cannot gain the access to the certificate needed to connect.

Use one of the following workarounds:

•Get a certificate without private key protection. Make sure it is machine-based; otherwise it will not be accessible before logging on).

•Instead of using Start Before Logon, log on to the PC using cached credentials, make the VPN connection, and— using the 'stay connected at logoff' feature—logoff/logon with the VPN established to complete the domain logon.

Linksys Wireless AP Cable/DSL Router Version 1.44 or Higher Firmware Requirement

To use the VPN Client behind a Linksys Wireless AP Cable/DSL router model BEFW11S4, the Linksys router must be running version 1.44 or higher firmware. The VPN Client cannot connect when located behind a Linksys Wireless AP Cable/DSL router model BEFW11S4 running version 1.42.7 firmware. The VPN Client may see the prompt for username/password, then it disappears.

VPN Client Can Require Smart Card When Using Certificates

You can configure the VPN Client to require the presence of a smart card when certificates are used. If this feature is configured, the VPN Client displays an error message if a smart card is not present. The certificates need not be present on the smart card itself. To configure this feature, add the following line to the user's client profile, specifying the appropriate vendor for your smart card:

SmartCardName=<Name of Smart Card Vendor>

If you are using pre-shared keys instead of certificates, this requirement is not enforced, even if configured.

To disable the smart card verification function, completely delete the entry: SmartCardName=<text> from the user's client profile (CSCec82220).

Allowing ICMP Traffic to Pass Through the Firewall

The following configurations allow inbound ICMP packets (pings) when the default firewall rule for the Centralized Protection Policy (CPP) is pushed to the VPN Client.

On the VPN Client:

•Stateful Firewall (Always On) is enabled.

•The setting 'StatefulFirewallAllowICMP=1' is added to the [Main] section of the vpnclient.ini file.

•A connection is made to the VPN Concentrator that pushes the default CPP firewall rule to the VPN Client.

Use the parameter, 'StatefulFirewallAllowICMP=1'only if you want to allow ICMP traffic to pass through the firewall.

Use Zone Labs Integrity Server 2.1.052.0 or Higher with VPN Client 4.0

Versions of the Zone Labs Integrity Server earlier than 2.1.052.0 exhibit the following problem. If two or more VPN Clients running on Windows XP are connected to a VPN 3000 Series Concentrator and receive firewall policy from a ZoneLabs Integrity Server, the Integrity Server registers only one connection.

On the Integrity Flex (client agent), under 'Policies', the 'Integrity Server' column flashes 'Connected' then 'Disconnected' over and over. The VPN Client log also includes the following event: 'The firewall, configured for Client/Server, returned a status of lost connection to server.' Zone Labs Integrity Server version 2.1.052.0 fixes this issue.

Restart VPN Client Service if You Install VPN Client before Zone Alarm

The firewall enhancement, 'Prevent VPN Traffic Blocking', automatically adds the Loopback address (127.0.0.1) and the address of the VPN 3000 Concentrator to the ZoneAlarm or ZoneAlarmPro trusted zone.

VPN Client cTCP Connection Fails If Checkpoint Client Is Installed

When the Checkpoint VPN-1 SecuRemote client is installed with the 4.6 or higher VPN Client, and the VPN Client attempts to connect using cTCP, the VPN Client cannot make the connection. Connections do work with UDP, NAT-T, and non-NAT connections.

To make a connection with cTCP when the Checkpoint VPN-1 SecuRemote is installed, you must disable the Check Point SecuRemote driver in the Connections Properties. To do this, you must be administrator. Follow these steps:

Step 1 Click Start > Settings > Control Panel >Network and Dial-up Connections.

Step 2 Select the Local Area Connection you use.

Step 3 Click on File > Properties.

Step 4 Uncheck Check Point SecuRemote, and click OK.

Installing the VPN Client on a Japanese System Using MSI

Follow these steps to install the VPN Client on a Japanese system, using Microsoft Installer:

Step 1 Extract the file vpnclient-win-msi-5.0.00.0340-k9.exe to any folder.

Step 2 Execute vpnclient_setup.msi. The installer runs in English.

Step 3 After installation is complete, modify vpnclient.ini as follows: ClientLanguat=jp

Step 4 Launch the VPN Client.

Duplicate IP Address Triggers Error 442 on Windows Vista

The following error 'Reason 442: failed to enable virtual adapter' appears after Windows Vista reports a duplicate IP address detected. Subsequent connections fail with same message, but the OS does not report a duplicate IP address detected.

To work around error 442, do the following steps:

Step 1 Open 'Network and Sharing Center'.

Step 2 Select 'Manage Network Connections'.

Step 3 Enable the Virtual Adapter ('VA'—Cisco VPN Adapter).

Step 4 Right-click on Cisco VPN Adapter and select 'Diagnose' from the context menu.

Step 5 Select 'Reset the network adapter Local Area Connection X'.

If this procedure does not work, run the following command from cmd:

reg add HKLMSystemCurrentControlSetServicesTcpipParameters /v ArpRetryCount /t REG_DWORD /d 0 /f

Then reboot.

This resolves the issue until the OS reports a duplicate IP address again. Follow the preceding steps to resolve it again.

If that doesn't work, you might have UAC enabled. If so, you must run cmd as administrator and repeat the previous registry workaround.

Windows Vista Window Auto-tuning Feature Might Cause Network Timeout Problems

Windows Vista support a feature called 'Receive Window Auto-Tuning' that continually adjusts the receive Windows size, based upon the changing network conditions.

Some people reported that auto-tuning causes network timeout problems with some applications and routers. If you have experienced such problems, you can turn it off using the following procedure:

Step 1 Open an elevated command prompt.

Step 2 Enter the following command to disable auto-tuning:

If this solution does not fix the problem, you can turn it back on, as follows:

Step 1 Open up an elevated command prompt.

Step 2 Enter the following command to enable auto-tuning netsh interface tcp set global autotuninglevel=normal

To view the states of the TCP global parameters, use the following command:

(CSCsi26106)

Windows Vista Error 412

When running under Windows Vista, you might encounter error 412: The remote peer is no longer responding.

To work around this error, upgrade the local NAT device firmware. If this is not possible, switch to TCP. If switching to TCP is not possible, use the following keyword in the connection profile (*.pcf):

UseLegacyIKEPort=1

Note If you are using Domain Isolation, you cannot use the UseLegacyIKEPort keyword, as this conflicts with Microsoft Domain Isolation.

Known Caveats

Caveats describe unexpected behavior or defects in Cisco software releases.

Note If you have an account with CCO, you can use Bug Navigator II to find caveats of any severity for any release. To reach Bug Navigator II on CCO, select Software & Support: Online Technical Support: Software Bug Toolkit or navigate to http://www.cisco.com/pcgi-bin/Support/Bugtool/launch_bugtool.pl.

Table 1 shows all Severities 2 and 3 caveats known to be in Release 5.0.07.0291-FIPS.

Resolved Caveats

Table 2 shows the caveats that Release 5.0.07 resolves.

Related Documentation

•Cisco Security Appliance Command Line Configuration Guide

•Cisco Security Appliance Command Reference

•ASDM Online Help

•ASDM User Guide

•Cisco AnyConnect VPN Client Administrator Guide

•VPN 3000 Series Concentrator Reference Volume I: Configuration, Release 4.1

•VPN 3000 Series Concentrator Reference Volume II: Administration and Management, Release 4.1

•VPN 3000 Series Concentrator Getting Started, Release 4.1

This document is to be used in conjunction with the documents listed in the 'Related Documentation' section.

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• 4Troubleshooting

Obtaining and installing the Cisco VPN Client

The VPN client can now be found in 'My Akron Experience' / Help Center under the Home use software downloads section of the Help Center. The file can also be obtained from the ZipSupport Center. You will need a USB flash drive, or other portable media to obtain the file.

Using the Cisco VPN Client for Windows

To begin using the Cisco Systems VPN Client:
1. After the computer reboots, it places a 'UA VPN' icon on your Desktop
2. Click this icon to start the program
After launching the client, you will see this screen:

1. Click the Connect button.
2. Enter your UAnetID and password.
3. It will connect and show the VPN icon in your taskbar near the clock.
In order to disconnect:

1. Right click the VPN icon in the taskbar.
2. Select Disconnect.

Configuring the VPN client

These steps should not be necessary, as the client will be auto configured on install. If you need to configure the client for UAs network, you can read the instructions here.

Troubleshooting

VPN Client says it installed, but cannot be found on your computer

This can occur with the following symptoms:
1. Package extracts and then immediately disappears (no installation occurs)
2. Your computer does not restart after the installation process
3. You cannot find the VPN client in the Start Menu or anywhere on your computer for that matter
A common cause of this issue is an antivirus program that does not like the Cisco VPN installer. The easiest way to get around this is to temporarily disable your antivirus software, and then attempt to install the VPN client. Many antivirus programs have an option to disable it until the next restart. This would be ideal as the VPN client restarts your computer at the completion of the installation. When your computer reboots, your antivirus should be back on and the VPN client can be found on the desktop.
Another cause of this can be the display resolution on the computer. The Cisco client cannot be installed unless the resolution is at least 800x600. Anything less than this will cause the program to crash. This can be an issue with some netbooks, older computers, and computers without proper display drivers installed. If your computer is not capable of obtaining a higher resolution, you may need to try an alternative method of connection. A possible workaround for advanced users with another machine available is to establish a remote desktop connection to the computer in question and install it from there.

Error 2738 on Windows Vista

If you receive an error 'Internal Error 2738', try these directions to potentially resolve the issue:

1. Run a command prompt in administrator mode (Start/All Programs/Accessories/ right click on Command Prompt, select Run As Administrator)
2. type: cd %systemroot%system32
3. type: regsvr32 vbscript.dll

Error 442: failed to enable virtual adapter.

Resolution

1. Try rebooting the computer and connect to the VPN again.

2. Uninstall and reinstall

• Go to Control Panel and select Programs and Features
• Select Partners Cisco Systems VPN Client and select uninstall
• Restart the computer
• Then reinstall the Cisco VPN Client again.

3. Another possible fix for this Cisco bug is to perform the following steps:

• Open the Control Panel and go to Network and Internet.
• Open Network and Sharing Center
• Open Network Connection Manager
• Enable the virtual adapter ('Cisco VPN Adapter')
• Right click on it and select 'Diagnose'
• Select Fix

4. The issue could be related to the Deterministic Network Enhancer (DNE)

• You will need to go to the Citrix website found here [1] (this software is not supported by the University).
• Once there download the winfix.exe and dneupdate.msi for 32 bit or 64 bit depending on your system.
• Uninstall the Cisco VPN Client (See step 2. if you are unsure how to uninstall the program).
• Run the winfix.exe first when it is done you must reboot the machine.
• When the machine has finished rebooting run the dneupdate.msi. This will also require a reboot of the machine.
• Reinstall the Cisco VPN Client and attempt another connection.

5. If the setups listed up do not work, run the following command from the command prompt:

Cisco Vpn Client 442 Login

• Then reboot.
• This resolves the issue until Vista reports a duplicate IP address again. Follow the preceding steps to resolve it again.
• If that doesn't work, run the following from cmd.

Error 413: User Authentication Failed

Resolution
If the user receives this error message before being prompted to put in their password:
1. Close the Cisco VPN Client, re-launch and try again.
2. If step 1 doesn't work, please reboot and try again. (note: this has worked in several cases)

If the user receives this error message after putting in their password:
1. The User will need to contact their admin for a password issue.

If you need help in acquiring the client, please contact the Help Desk by calling 330-972-6888

Cisco Vpn Client 5.0.07.0440 Windows 10