VPN error 721 Help would be appreciated

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Guest

I have two LANS on remote locations one on a 10.0.0.* ip range and the other
on 192.168.16.* ip range. Each site has a SBS2000 domain controller.
I use Netgear Dg834 ADSL routers on each side for Iternet connectivity. I
opened the VPN port 1723 on the Firewall on the router,.I connect with
Microsoft VPN client using pptp. I make one successful connection from the
one LAN, As soon as I try to connect from another client on the same LAN I
get a 721 error. I have managed to connect from other sites simultaneously
with up to three connections from different locations(LANS).as soon as I try
2 ore more connection from the same LAN i receive a 721 error nad it hangs on
verifying username and password. Please any help would be great. all my PC's
running XP pro sp1,2
 
some routers limit one VPN connection. If this is the case, you may want to setup site to site VPN. this page may help,

Microsoft site to sie vpn
Step-by-Step Guide for Setting Up a PPTP-based Site-to-Site VPN Connection using
2003, Step-by-Step Guide for Setting Up a PPTP-based Site-to-Site VPN ....
www.howtonetworking.com/articles/mssitetositevpn.htm


Bob Lin, MS-MVP, MCSE & CNE
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
This posting is provided "AS IS" with no warranties.
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.
I have two LANS on remote locations one on a 10.0.0.* ip range and the other
on 192.168.16.* ip range. Each site has a SBS2000 domain controller.
I use Netgear Dg834 ADSL routers on each side for Iternet connectivity. I
opened the VPN port 1723 on the Firewall on the router,.I connect with
Microsoft VPN client using pptp. I make one successful connection from the
one LAN, As soon as I try to connect from another client on the same LAN I
get a 721 error. I have managed to connect from other sites simultaneously
with up to three connections from different locations(LANS).as soon as I try
2 ore more connection from the same LAN i receive a 721 error nad it hangs on
verifying username and password. Please any help would be great. all my PC's
running XP pro sp1,2
 
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