FYI. 5.1.4.74 version of Cisco Secure Client (AnyConnect) has now been released and should include the fix. I am yet to test it but will do once I get a copy of it - https://www.cisco.com/c/en/us/td/docs/security/vpn_client/anyconnect/Cisco-Secure-Cl...

Hi, there is a fix for it and I have a preview version of AnyConnect which does look like the issue has been fixed but this was the response I got from Cisco Support when asking for a timeframe when the fix will be incorporated into the main build of...

Cisco support have finally raised this issue as a bug - https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwj19626. There is a potential fix for this that I am working with Cisco on at the moment with a preview version of AnyConnect. 

I believe they are still looking at it. I did send a follow up yesterday so hopefully get a response soon. Have you tried disabling Fast Start Up as a workaround? 

It looks like Cisco have released an updated AnyConnect version - 5.1.2.42. We are yet to verify whether this fixes this issue but in case anyone wanted to try it as well. I'm still waiting to hear back from Cisco support.