Anyconnect client - Multple logins before connection made

[Phil L]

Some of our users have recently started having to log in multiple times before getting a successful connection. This is happening intermittently.

Our ACS shows the users logging in successfully each time they attempt a log in, and our ASA5520 shows multiple instances for them under show vpn-sessiondb.

Affected users get a popup saying "connection attempt failed. Please try again".

Our ASA is running 9.1.7(4), anyconnect version 3.1.14018

Any ideas?

Thanks,

Phil

[Phil L]

Apparently there has been a change in the timeout for proxy.pac files probably due to a Windows update

We use a proxy.pac file that is hardcoded by AD. When our laptops are off network they experience a delay when opening a browser or anyconnect. This used to be about 10 seconds but is now much longer- enough to cause anyconnect to timeout.

We temporarily set anyconnect to use no proxy.pac. We will be switching to using dhcp to push out proxy.pac settings.

Thanks,

Phil