VPN Authentication issues, please help.

[number2jcb]

I have set up a Windows 2003 Server as a VPN Server and am able to successfully connect and authenticate from within the network. However, the client that counts (a roaming user with a wireless ISP connection) gets to the point of verifying the username and password and it says it can not connect. My firewall is configured to pass PPTP traffic to the VPN Server and if I block traffic at the firewall the VPN client returns a different error message. What could be preventing me from connecting successfully?

The Error Message is number 619 (A connection to remote could not be established so the port used for this connection was closed). The more info section doesn't really help that much, except it says that a firewall or NAT device may not be functioning correctly.

Could the Cisco Router for the T1 be the problem (model 2524)? If that needs any configuring please let me know how because I have not yet had the pleasure of configuring it before.
How about the Wireless ISP?

 

[ChicagoTechNet]

quoted from

http://www.chicagotech.net/

Error 619: 1. The port was disconnected (or Error 645, Dial-Up Networking could not complete the connection to the server and Error 930, The authentication server did not respond to authentication requests in a timely fashion. The Event Viewer shows: Event id: 20073, Description: The following error occurred in the Point to Point Protocol module on port: port number, UserName: user name. The authentication server did not respond to authentication requests in a timely fashion). When using VPN to access a remote network, W2K clients mat get above errors but not win9x and ME clients. This issue occurs because the VPN server hasn't registered in Active Directory.
2.You get this message when connecting via cable modems, dial up DOESN'T have any issues.

Resolution: 1) This problem most likely is secure issue such as unsecured password. So, check the settings.
2) It could be the hardware issue. Try to re-setup the device or download the new driver or just reset the devices such as modem and router.
3) Reapply the service pack
4) If the RRAS is in a domain network, add the VPN to the appropriate group. To do this, go to Active Directory Users and Computers>domain name>Users, double-click the RAS and IAS Servers security group. Select the members and add the VPN server to this group. 2) Type netsh ras add registeredserver at a command prompt (registeredserver is vpn server name), and then press ENTER.



Robert Lin, MS-MVP, MCSE & CNE
Windows, Network and How to at

http://www.ChicagoTech.net