Suddedly our VPN stopped working with no obvious changes to our infrastructure. The connection to the VPN is intermittent - some times i am able to successfully connect then other times the client hangs on verifying username and password and gives me the 800 error. on the server event log side i get the error 20209. I have tried changing the firewall which gave me the same result. I am lost as to what could have happened.
We are using a PPTP VPN using routing and remote access
WIndows SBS 2003 SP1 installed
1 linksys switch
1 watchguard firewall
Any help would be greatly appreciated.