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Win2k PPTP client not responding to Echo-request

Win2k PPTP client not responding to Echo-request

Win2k PPTP client not responding to Echo-request

I use Cisco VPN 3000 concentrator as a PPTP server. Win2k PPTP clients connect to the VPN 3000 OK, but often have problems remaining connected. Analysis shows that the client usually sends Echo-requests to the server every 60 sec but sometimes the delay between Echo-requests can be up to 90 sec. In this case, after waiting 70 sec, the VPN 3000 sends an Echo-request to the W2k client, which does not send back an Echo-reply. The VPN 3000 assumes the client is unreachable and closes the tunnel.

As I understand it, both sides of a PPTP connection should respond to Echo-requests. Is this a bug in the W2k client, or something else?

Thanks for your help,
Mike Poff

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