Windows Server 2003 - RRAS VPN connections only work through Linksys brand home routers...

Can you please post a complete IPCONFIG /ALL from your server?  While there is nothing in an IPCONFIG /ALL that would compromise the security of your network (this is the most often requested output in any support forum), there may be items which would provide your identity and therefore compromise your privacy if that is of concern.

Therefore, if you feel that it's necessary, you can modify the domain name, but please only modify anything that is identifiable to something generic.  Such as changing TechSoEasy.local to MyCompany.local.  If you have any public IP addresses, please just replace the last two octets with ***.***, and some people do not like to have the MAC (Physical) address shown... if you like, just modify he last few sections of these to **-**-**.

Jeff
TechSoEasy

Windows IP Configuration

   Host Name . . . . . . . . . . . . : server
   Primary Dns Suffix  . . . . . . . : example.example.com
   Node Type . . . . . . . . . . . . : Unknown
   IP Routing Enabled. . . . . . . . : Yes
   WINS Proxy Enabled. . . . . . . . : Yes
   DNS Suffix Search List. . . . . . : example.example.com

PPP adapter RAS Server (Dial In) Interface:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
   Physical Address. . . . . . . . . : 00-53-45-00-00-00
   DHCP Enabled. . . . . . . . . . . : No
   IP Address. . . . . . . . . . . . : 192.168.3.36
   Subnet Mask . . . . . . . . . . . : 255.255.255.255
   Default Gateway . . . . . . . . . :

Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . : example.example.com
   Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection
   Physical Address. . . . . . . . . : 00-14-22-22-64-5E
   DHCP Enabled. . . . . . . . . . . : No
   IP Address. . . . . . . . . . . . : 192.168.3.2
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.3.1
   DNS Servers . . . . . . . . . . . : 192.168.3.2

Also, when I say vpn connections only work with Linksys brand, I mean the vpn connection can only access ip addresses, not netbios or fqdn. The problem therein lies in that most people only know network addresses by their name, not ip address.

Are you using WINS on your network?  If so, you should define that in the NIC's settings which will allow remote users to see network resources.

Jeff
TechSoEasy

1- make sure RRAS is listed in the RAS and IAS servers security group
2- make sure your binding order is correct
3- and -4 (i am no expret and must be checked by TechSoEasy or firewall gurus)

3-clients making a connection through VPN must be on diffrent subnet than the one used by ur internal clients..
4-ur internal and external NIC cards should also be on diffrent subnets...

i am no expert in firewall\VPNs ....just making some general comments....
take care and good luck.