Re: VPN not working when client behind another firewall

From: Gary Karasik (gkarasik2fea.net)
Date: 08/04/04 

Date: Wed, 4 Aug 2004 08:23:51 -0700

Hi, Mark,

I have no solution to offer--just some sympathy. I have a similar problem:
Win98se clients that are behind a firewall can't VPN into SBS2K3 boxes
although they will VPN into other boxes. XP clients behind the same firewall
can connect to the SBS2K3 boxes.

I get the same error you get, and all the appropriate ports are opened. I
can't tell which end the problem is on.

GaryK

"Mark Richards" <mark.richards@expw.co.uk> wrote in message
news:c1da01c47a30$9def6fb0$a301280a@phx.gbl...
> Hi,
>
> VPN is not working for our client PCs currently trying to
> connect from behind another firewall. The administrators
> of the "other" firewall have opened up ports 1721, 1723
> and 500, 1701, but our PCs get the following error after
> the dialog box says "Checking password":
>
> "The remote computer did not respond. For further
> assistance, click More Info or search Help and Support
> Center for this error number. (Error 721) For customized
> troubleshooting information for this connection, click
> Help.
> Pausing before reconnecting (3 seconds)..."
>
> We've tried opening ALL ports on our firewall but to no
> avail. I am also unable to telnet to any of the ports,
> although I may be attempting to do this incorrectly.
>
> Any thoughts / help would be much appreciated.
>
> Regards
>
> Mark

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