VPN Error 778

[Don Longan]

I have a client with a win2000 sp2 server setup with AD.
Using a linksys router to the internet. The vpn
connections worked fine in the past, but something has
changed. Now when we attempt an connection (winxp
clients) we get the following error:

Error 778: It was not possible to verify the identity of
the server.

Searched knowledge base but no luck on getting more info.

I have reviewed the event logs on both the server and
clients but no indication of any type of failure.

My suspections are something with AD settings/policies

Any insight would be greatly appreciated.

Don Longan

 

[Don Longan]

Thought it to be important to mention we are using basic
pptp connections.

Don

 

[Priya Raghavan MSFT]

Hi Don,

Server identity can be verified using Certificates. Your Server should have
a certificate and the Certificate Authority (CA) who issued it should be
trusted by the client. So, if you want to verify the identity of the server,
1. Install a certificate on the server from any CA
2. Put that CA in the Client's Trusted Root CA

Or if you dont want to verify the server identity:
1. Go to Properties of the interface
2. Security
3. Advanced security settings
4. Use EAP for authentication - Properties
5. Uncheck the box for Verify Server Identity

Thanks,
Priya.