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Very unstable VPN - Vigor 3200

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14 Mar 2012 16:10 #71577 by clientbase
Very unstable VPN - Vigor 3200 was created by clientbase
Hi

We have a Vigor 3200 running the latest firmware and connected via direct lease line to the Internet (the provider is Spitfire).

We have 4 VPNs setup on the router going to a veriety of our clients, 3 of which are stable enough.

However one of the VPNs is extremely unstable, it stays up typically for 10 - 15 seconds, drops and then immediately comes backup again. Additionally it is called "Dynamic Client" when viewing it under Connection Status which it is NOT called in the LAN to LAN list.

I'm not sure where to start troubleshooting on this one; I have rebuilt from scratch but not sure what else to do. It is an IPSEC VPN using AES. I do not know what the client's ISP equipment is.

Many thanks

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