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VPN cannot connect

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by bogsibogs_102002

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Hi to all,

I have 3 Branches connected through DSL via VPN all branches can ping its public ips assigned by the ISP but when I connect through VPN error 800 appears or VPN line cannot be contacted. I remove all firewalls but still VPN cannot be stablished. Is there anything I missed?

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by amy.brown

This is a good troubleshooting article for Windows VPN:

http://support.microsoft.com/kb/314076

If you are getting Error 800, verify that relevant ports and protocols are open(not just for ICMP traffic)

For PPTP tunnels: Check TCP 1732 and protocol 47 (GRE)

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