How do you use your vpn? Is it from the settings that you've input or an app? I've only used app connected vpn but haven't been having issues. And have you verified that it's not an issue from the vpn provider in any way?
After you install it, you goto the VPN in settings to configure VPN connection with cisco any connect profile. You're connecting to something that uses cisco vpn right?
I have the same problem. My vpn provider has no app, so i had to manually add the servers and configurations. It works fine, connection is good, but the problem is that when i block the screen, the vpn disconnects. Can't make it stay connected all the time? Anyone has/had the same problem?