Bloody VPN is giving me a headache!
Microsoft released an update to Win8.1 this week -- which has screwed my Cisco VPN connection. Again. I thought it was only my Win10 laptop that was hating Cisco VPN but I think there is a developer on the Windows team that hates Cisco... lets call him "Henry". Well, Henry is a little bugger because he likes to screw with VPN compatibility, tinker with required MTU settings and basically shaft us poor windows users who have multiple VPN connections. Luckily I have found a fairly solid way of fixing these problems over the last couple of months.
Compatibility Wizard setting to WIN7 generally does the trick, but I always recommend re-installing the software first because (a) it will ensure you are running the latest version and (b) will make sure the software registry is all setup correctly. So lets get to it...
(1) Reinstall the VPN software
Cisco Legacy Client (5.0.7)