Question

Locked

VPN suddenly stops working on XP workstation

By john ·
PC is behind an ISA server and is not running any firewall of its own. I set up a VPN connection on this computer probably a year ago. It suddenly just stopped working. I get "Error 800: Unable to establish the VPN connection". In fact, I can't make ANY VPN connections from this computer. ISA doesn't show any traffic occurring when I try the connection. But I can use telnet to connect to port 1723 on the VPN server (ISA does show this traffic). It's like the VPN component of Windows broke or something. Has anyone ever seen this?

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All Answers

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Client

by shasca In reply to VPN suddenly stops workin ...

If it using a VPN software client for connectivity, uninstall and reinstall it.

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Windows Updates?

by tmalo627 In reply to VPN suddenly stops workin ...

I know Windows Updates will change network settings from time to time. If Automatic Updates has run recently, I would double check the Windows Firewall and other network related settings just to make sure nothing was changed by that.

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Fixed...

by john In reply to Windows Updates?

I checked all the settings, and I am using the Windows VPN client, not a third party. I wound up using the XP TCP/IP Repair Tool which fixed the problem. Thanks for your help.

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