assuming you got error 721. quoted from http://www.ChicagoTech.net
Error 721: Remote PPP peer or computer is not responding. If you have tried
many thing other people suggest like rebooting, reloading hardware and
re-installing the VPN or dial in connection, you still get the same problem.
I will suggest to check the router settings and make sure TCP Port 1723, IP
Protocol 47 (GRE) are opened. Also make sure that the router has the PPTP
enabled and not firewall block the traffic. On the RAS server, check the
DHCP settings.

Signature
For more and other information, go to http://www.ChicagoTech.net
Don't send e-mail or reply to me except you need consulting services.
Posting on MS newsgroup will benefit all readers and you may get more help.
Robert Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on
http://www.ChicagoTech.net
This posting is provided "AS IS" with no warranties.
> Hi All,
>
[quoted text clipped - 40 lines]
> Thanks
> CLS
CLS - 31 Mar 2004 22:20 GMT
I have heard so much on this protocol 47 (GRE). How or where can i access
it? I found all this stuff on what it is, but I cannot find anything on
where to find it or how to check it.
> assuming you got error 721. quoted from http://www.ChicagoTech.net
> Error 721: Remote PPP peer or computer is not responding. If you have tried
[quoted text clipped - 49 lines]
> > Thanks
> > CLS
J.C. Hornbeck [MSFT] - 31 Mar 2004 22:31 GMT
It's part of the VPN/PPTP client and server. You don't have to install this
protocol like you do other networking protocols like TCP/IP and NetBEUI.
You're already using it.

Signature
J.C. Hornbeck, MCSE
Microsoft Product Support
NOTE: Please reply to the newsgroup and not directly to me. This allows
others to add to and benefit from these threads and also helps to ensure a
more timely response. Thank you!
This posting is provided "AS IS" without warranty either expressed or
implied, including, but not limited to, the implied warranties of
merchantability or fitness for a particular purpose.
> I have heard so much on this protocol 47 (GRE). How or where can i access
> it? I found all this stuff on what it is, but I cannot find anything on
[quoted text clipped - 66 lines]
> > > Thanks
> > > CLS