Error 628: The port is disconnected or The connection was terminated by the remote computer before it could be completed. This is most likely a modem or phone line noise issue or blocking port issue.
1) make sure you have good phone line.
2) Upgrade the modem/router firmware
3) Make sure you logon using the correct username or password or try different username.
4) Reinstall the modem.
5) Re-enable RAS
6) Check the router/firewall settings.
7) Make sure the router is VPN pass through or GRE is enabled.
Was this answer helpful?
Error 800: Unable to establish the VPN connection. The VPN server may be un-reachable, or...
Error 733: the PPP control protocol for this network protocol is not available on the server....
Error 792 - The L2TP Connection Attempt failed because security negotiation timed out....
Error 645: Internal authentication error (also re: error 913), or Dial-Up Networking could...
Error 913: A Remote Access Client attempted to connect over a port that was reserved for...
Powered by WHMCompleteSolution