Error 645

Error 645:  Internal authentication error (also re:  error 913), or  Dial-Up Networking could not complete the connection to the server.

Resolutions:
1) uncheck require encrypted password under the Server Types tab.
2) Make sure you are entering your correct username and password when connecting.
3) Uninstall and reinstall the Dial Up adapter. 4) Refer to error 619 resolution - add the vpn to the appropriate group.

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