Dear fellow cisco enthusiasts. :)
I am experiencing quite a strange situation.
We have upgraded our AnyConnect from version 4.x to 4.5 (04029) on the ASA.
We tested everything and clients started to update automatically when making VPN connection. For 80% of all people it is working correctly. But now and then we receive an client which has failed to upgrade. The .msi will start a rollback action and when the installation done, no client is left.
I started to troubleshoot on these specific machines to check what is happening.
I’ve tried quite some option for example;
Basic reinstall. No success I receive same error.
Tried to delete known folders;
C:\Program Files (x86\ Cisco
C:\ProgramData\Cisco
C:\%username%\.cisco
Then tried reinstall, still same error.
Found article on cisco community regarding full removal of Anyconnect client which involved all reg keys attachted to Anyconnect client or msi file. Restarted the installation, still same error.
Tried to install older versions e.d. 3.1, 4.0 etc. same error.
So now you are wondering.. what is that specific error.
Well it says “installation ended prematurely” so…. Nothing technical.
I needed a little more information so I installed with specific commands to generate an installation log. (msiexec /i c:\temp\anyconnect-win-4.5.04029-core-vpn-predeploy-k9.msi /lv log.txt)
I received quite a large log, but I could find out at which part its necking the installation.
I hope someone can help me further.
The log file I will add as attachment.
Kind Regards,
MJacobs
