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Windows 2000 VPN / RRAS Problems

Posted on 2004-08-26
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Last Modified: 2010-04-13
My company has a network of serveral Windows 2000 server machines.  I have been logging onto the network remotely via VPN to do work from home; however in recent days I am now being refused login with the error:

Access was denied because the username and/or password was invalid on the domain.

When I'm at work my login/password works fine on all the machines on the network, I've checked in the Active Directory of Users & Computers against another user (lets call him Bob for explanation purposes) who is able to login fine via VPN and I cannot see any differences.  The servers are setup to mirror the security settings across to each other.

We tried changing Bob's password and noticed the VPN would only connect with Bob's old password which gives me the impression something is not mirroring correctly or this is configured from somewhere else.  Does anyone have any suggestions?
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Question by:sf0a
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by:Rob Stone
ID: 11902450
I presume your using Windows Authentication for VPN and not a RADIUS server?

Is the RRAS server your AD Server or another one?
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by:sf0a
ID: 11902713
Ok a bit more info.  We have an outside INTY firewall box that I think allows connection through to the RRAS server.  The RRAS service is not configured on the main domain controller (AD server), I have found a machine that is setup and running RRAS but when logged in as Bob over VPN the other day I checked this machine and no connection appeared in the admin panel so I'm guessing this isn't the box in question.  I'm currently having a look on the network for any other RRAS servers.  I don't know what a RADIUS server is so please bear with me while I gen-up on that!

The problem is our network admin guy is away and I'm not sure when / if he's coming back.

I don't think the INTY server is the problem as I connect to the INTY server to enable proxy access to the net when I'm at work and this seems un-affected, however I confess I'm not a networks expert so just in case the box is called an Inty ExoServer.

Let me know if you need more info.
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by:sf0a
ID: 11902824
Having said all that, I've checked the ExoServer site and it does appear to support VPN directly.  Everything is pointing to that as there is no other server on our network setup for RRAS that I can see.
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by:garyy
ID: 11910889
Can you VPN to the LAN hostname of the VPN server from within your network ok using the same username?

Thanks
Gary
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by:Rob Stone
ID: 11911031
Have a quick flick through this link under Networking>VPN
http://www.microsoft.com/windows2000/en/server/help/
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by:sf0a
ID: 11911744
Hi. We solved the problem.  The ExoSever was at fault, it hadn't picked up the PPTP users correctly from the Windows AD server.

What shall I do with the thread now?
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by:Rob Stone
ID: 11912461
Put a post in the Community Forum for a refund. Then the question will be saved in the history and searchable on google so others might find it useful.

Well done.
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