Taking a slight diversion from my usual subject matter with this post. I was trying to connect to a clients system via VPN a short while ago when I received error 778:

Error 778: It was not possible to verify the identity of the server
I did a little digging and found that this error actually relates to the username and password being incorrect. I checked our records and found that the password had been reset since the last time I logged on; after entering the new details I was able to log in successfully.
It would be nice if the error message had been a little more descriptive of the actual problem, but at least it was a simple solution.