error 800 on SBS 2003 VPN

I have been working on this problem for hours and have nowhere else to turn. I have a Windows 2003 SBS with one NIC. I have run RRAS setup as custom and enabled VPN. With a computer on the same LAN (IE no firewalls in the way), i cannon connect via VPN connect. I can ping the server and map drives, but cannot connect via VPN. The error message is ERROR 800, cannot connect to VPN server. I've tried everything thing i could think of: there is no policy restricting connections, no firewall installed on the server. I've tried just about every combination of authentication methods and still nothing works. I have even setup a Windows 2003 test server and that works right away as it should.

Please help! Any ideas would be greatly appreciated

Bob

quoted from http://www.ChicagoTech.net
Error 800: Unable to establish the VPN connection. The VPN server may be
un-reachable, or security parameters may not be configured properly for this
connection.

Resolutions:
1) if you have firewall, open TCP Port 1723, IP Protocol 47 (GRE).
2) make sure you can reach the VPN server by using ping. Sometimes, poor
connection can cause this issue too.
3) You may need to updated firmware on a router or firewall if other OS
(win9x/nt/me/w2k) works except XP.
4) The VPN server may not be able to get IP from DHCP for the VPN client.
So, you may want to re-configure VPN host networking settings. For XP pro
VPN host, go to the Properties of the VPN>Network, check Specify TCP/IP
address and Allow calling computer to specify its own IP address, and
uncheck Assign TCP/IP addresses automatically using DHCP.
5) Make sure other secure software blocks your access, for example, if you
use Norton secure software, you may need to add the remote client's IP so
that the client can access.


--
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.

"Bob" <(E-Mail Removed)> wrote in message
news:17CF39F4-4CE3-43A1-A23F-(E-Mail Removed)...
> I have been working on this problem for hours and have nowhere else to
turn. I have a Windows 2003 SBS with one NIC. I have run RRAS setup as
custom and enabled VPN. With a computer on the same LAN (IE no firewalls in
the way), i cannon connect via VPN connect. I can ping the server and map
drives, but cannot connect via VPN. The error message is ERROR 800, cannot
connect to VPN server. I've tried everything thing i could think of: there
is no policy restricting connections, no firewall installed on the server.
I've tried just about every combination of authentication methods and still
nothing works. I have even setup a Windows 2003 test server and that works
right away as it should.
>
> Please help! Any ideas would be greatly appreciated.
>
> Bob

Also note that 800 is a pretty useless error message, because it just
tells you that you can't connect. If you are using PPTP, set the clients to
PPTP rather than Auto. They will then not try L2tp, and should give you a
more meaningful message.


"Robert L [MS-MVP]" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> quoted from http://www.ChicagoTech.net
> Error 800: Unable to establish the VPN connection. The VPN server may be
> un-reachable, or security parameters may not be configured properly for
this
> connection.
>
> Resolutions:
> 1) if you have firewall, open TCP Port 1723, IP Protocol 47 (GRE).
> 2) make sure you can reach the VPN server by using ping. Sometimes, poor
> connection can cause this issue too.
> 3) You may need to updated firmware on a router or firewall if other OS
> (win9x/nt/me/w2k) works except XP.
> 4) The VPN server may not be able to get IP from DHCP for the VPN client.
> So, you may want to re-configure VPN host networking settings. For XP pro
> VPN host, go to the Properties of the VPN>Network, check Specify TCP/IP
> address and Allow calling computer to specify its own IP address, and
> uncheck Assign TCP/IP addresses automatically using DHCP.
> 5) Make sure other secure software blocks your access, for example, if you
> use Norton secure software, you may need to add the remote client's IP so
> that the client can access.
>
>
> --
> 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.
>
> "Bob" <(E-Mail Removed)> wrote in message
> news:17CF39F4-4CE3-43A1-A23F-(E-Mail Removed)...
> > I have been working on this problem for hours and have nowhere else to
> turn. I have a Windows 2003 SBS with one NIC. I have run RRAS setup as
> custom and enabled VPN. With a computer on the same LAN (IE no firewalls
in
> the way), i cannon connect via VPN connect. I can ping the server and map
> drives, but cannot connect via VPN. The error message is ERROR 800,
cannot
> connect to VPN server. I've tried everything thing i could think of:
there
> is no policy restricting connections, no firewall installed on the server.
> I've tried just about every combination of authentication methods and
still
> nothing works. I have even setup a Windows 2003 test server and that
works
> right away as it should.
> >
> > Please help! Any ideas would be greatly appreciated.
> >
> > Bob
>
>