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DUN ERROR 645

Internal authentication error.

  1. Check the connectoid, is require encrypted password checked under the Server Types tab? Uncheck it.

  2. Uninstall and reinstall the Dial Up adapter.

  3. Recreate the Dialer.

  4. Check for extra winsock.dll's and wsock32.dll's.

  5. Is VPN installed? If they do not use it get rid of it.

  6. Try inits.

  7. Uninstall and reinstall network.

  8. Nuke the pwl files.

  9. Try resetting their password on the server side.

  10. Full internet Uninstall and reinstall. (DUN, connectoid, pwl files, and network)

  11. Is it a laptop? Try moving the PCMCIA card to another slot.

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