VPN error 619

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.
5) If the router is connecting to a modem and setup DHCP to receive IP from the modem, you may try to assign static IP to the WAN port on the router.

Receiving VPN error 619 while connecting to a VPN via SBC

Resolution: Uninstall the self support tool form SBC and refresh the settings of your VPN

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