Cannot communicate with Cisco IPSec VPN's after installing Cisco AnyConnect VPN Client


After installing the Cisco AnyConnect VPN client I am now having problems using the normal Cisco VPN Client.

The Cisco VPN Client will connect fine but I am unable to send/receive any data over the link (ruoting table is updated correctly on my local PC) - I only have one site I connect to that uses the SSL VPN AnyConnect client - all other sites use the full Cisco VPN Client - and the issue is apparent on any of the Cisco VPN Client sites.

I know this is a problem with my PC as other people are fine - But Im not sure what the issue is and wondered if anyone else has experienced the same problem


Paul Adam
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I had the same problems in the past.  Looked at all kinds of solutions.  The only solution that worked for me was to install version 4.3.  You can only get it from Cisco.  Some users can connects some others cannot for no particular reason.  New PCs, same models, same image.  Version 4.3 is the most stable.
paul-adamAuthor Commented:
Will 4.3 install on Vista though?

paul-adamAuthor Commented:
Well....Windows Vista SP1 seems to have (bizarrely) fixed my problem!


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Apparently there is a timing issue in a core microsoft service that sets the tcp settings for the IPSec client from the registry.  It is an MS OS issue that is still in SP1 but less likely from what Cisco TAC guy said.
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