Error 633

Error 633 -The port is already in use / not configured for Remote Access Dialout


  • This error can be best remedied by:

  • A restart of your computer tends to resolve 50% of cases with this error message
  • Disable any Firewall Software and try to connect again...
  • Recreate the Dial Up Connection
  • Try uninstalling and reinstalling the Modem.
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