VPN Server Quit for no reason.. Please Help

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Guest

Hello,

We have a windows 2000 server that has provided a vpn connection for over a
year. All of the sudden it is having intermittent problems. If I try to log
into the server via vpn from a client I get a error 930 "authentication
server could not repond in a timely fashion" and I get error 20073 logged on
the server. If I stop the RAS service and restart it the vpn connections
will work great for about a half hour until it quits again. There have been
absolutely NO changes to this server since the time that it has worked great.
Any Advice?

Thanks in advance,

Mike
 
this may help. quoted from http://www.ChicagoTech.net
Error 930: The authentication server did not respond to authentication
requests in a timely fashion.
SYMPTOMS: after setup Routing and Remote Access service for VPN or dial-up
on a server to use RADIUS, or upgrade the server to a new OS, 1) the client
computers may receive the following error message: Error 930: The
authentication server did not respond to authentication requests in a timely
fashion. 2) On the RRAS server Event ID: 20073 The following error occurred
in the Point-to-Point Protocol module port: Port, UserName: Username. The
authentication server did not respond to authentication requests in a timely
fashion. 3) On the IAS server, the following error message may be reported
Event ID: 13 A request was received from the invalid client IP Address
IP_Address.
Causes: 1) The default path to the Remote Access log file has been changed
or is not valid.
2) The VPN server has not been set up as a RADIUS client in the IAS.
3) This behavior will occur if the VPN user has permissions to read only on
the Active Directory directory service record.
4) Refer to error 619 resolution - add the vpn to the appropriate group.

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Robert Lin, MS-MVP, MCSE & CNE

Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on
http://www.ChicagoTech.net
This posting is provided "AS IS" with no warranties.
 
I actually saw this answer in one of replies that you posted before. I
checked these things and nothing has changed at all. This server has ran
perfectly for about a year. no changes at all.... now the vpn is very
flaky...

anything else I can look for?

Mike
 
Are there any interesting events from IAS on the server? If you have RADIUS
based authentication, check the RADIUS server for the event log entries.
This will be a good starting point to understand this issue.

--
Kadir

(e-mail address removed) [MSFT]
This posting is provided "AS IS" with no warranties, and confers no rights.
 
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