Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Anyconnect DNS resolution error message

Hello,

We migrated all our staff from old VPN IPsec client to the Anyconnect client (version 3.1.04.. with ASA version 9.0.3) everything’s works well but some time we have users that cannot establish connection du the error message below:

< the vpn connection failed due to unsuccessful domain name resolution>

I didn’t find anything relevant article on the web about this issue and after a lot of analyses by myself I found that the URL mentioned on the profile xml file in the host address section cannot be reached, either because the file cannot be read or the entry wasn’t there anymore (don’t really know why), after going to the web browser and connecting to the VPN Gateway manually it download again the profile from ASA and everything’s works well again..

Am wondering if someone can help me to understand or give me the solution about this error message.

Thanks for your help

5 REPLIES

Re:Anyconnect DNS resolution error message

Do you run a active standby cluster? Perhaps the unit failover and on thr other unit are no prifiles?


Sent from Cisco Technical Support Android App

Michael Please rate all helpful posts
New Member

Anyconnect DNS resolution error message

Yes we have active/standby unit but I already checked the profile on both unit and the config is the same.

Thanks

Anyconnect DNS resolution error message

Is there a local virus scanner installed which does URL filtering / DNS blacklists like McAfee?

Perhaps resolution fails because the scanner intercepts the DNS request?

Michael

Please rate all helpful posts

Michael Please rate all helpful posts
New Member

Anyconnect DNS resolution error message

Hi,

Nothing have with virus scanner or URL filtering, I already checked that also.

New Member

Anyconnect DNS resolution error message

Hi,

We encounter this problem with cisco any connect 3.1.01065 on windows 7 computer having Internet explorer 10 or 11 installed. If we revert to IE 9, the problem disapear.

9804
Views
0
Helpful
5
Replies
CreatePlease to create content