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VPN Forum Technical
Topic: VPN WOES. DISCONNECTING AFTER A FEW SECONDS. [New Topic]  [New Reply]
 Author  Message
wiinter
Member since:
2004-10-01 13:36:05
  posted: 2004-10-01 13:36:54
VPN woes. Disconnecting after a few seconds.
----------
I’ve been using a VPN connection to the same remote office for about 5 years now. Have had very few problems.

But now, I’m having a problem where my VPN disconnects after a few seconds of connectivity. This problem seems to be isolated to one machine, as I’ve used the exact same connection (including user/pass) on two other machines on the same hub, in the same office – as well as two machines outside of the office – no problems with these comps when using the VPN.

I can’t think of any ways to troubleshoot this, and our network admin only suggests I reformat my machine.

Two events that may or may not have contributed to the problem are:
1) I have uninstalled Sygate’s free software firewall, and then reinstalled.
2) I had disconnected this machine from the network, disabled the ethernet LAN, and then enabled my wireless LAN. This was for a vacation where I took the laptop with me. I was unable to get any VPN connectivity from this point on, so I think this may be the real contributor.

If anyone has any idea as to the particular problem and/or how to fix it, I would be extremely grateful!!

-J
wiinter
Member since:
2004-10-01 13:36:05
  posted: 2004-10-01 13:55:58
Additional Note
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I should mention that I’m running Windows2000, and the “55 second disconnect” XP issue doesn’t seem to be the problem, but I could be wrong (there is no Win2k hotfix).
wiinter
Member since:
2004-10-01 13:36:05
  posted: 2004-10-04 13:32:10
Also
----------
We're also connected to a local domain, and I have several mapped drives to the file server. There are no performance problems to these drives, or with all other network / internet access.

I'll relay the exact order of events (should address your firewall question):
1) VPN to remote location working. Also, software firewall is inactive while i'm behind the office network.
2) Uninstalled firewall, since I wasn't using it anyway. Did a little pre-vacation cleanup of the hard drive.. deleting emails, etc.
3) Packed up laptop, took with me to a location that had wireless connectivity.
4) Disabled my ethernet LAN and actually also cleared my IP and DNS settings (not sure why), enabled wireless card LAN.
5) Noticed that I could VPN into both the remote location, as well as VPN back to my office file server, however, the connection wouldn't sustain longer than a few seconds, sometimes 30-60 seconds, but usually 10 seconds. I deemed this a problem with being behind a router on the wireless network.
6) Got back to the office, from vacation, disabled wireless card LAN, enabled my ethernet LAN, and put my exact network settings back in (IP, DNS, etc).
7) Noticed that VPN to remote location still wouldn't sustain a connection, even tho, as far as I can tell, everything was the same as when I left on vacation.
8) Figuring that it may be related to me uninstalling my software firewall, I decided to reinstall it. The VPN will connect with both the firewall on or off, but it will still not sustain a connection, whether on or off..

So... I'm all out of ideas. Do you know of logs, or ways I could troubleshoot this?
 
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