Error Code 401

This error occurs when Tally.ERP 9 is unable to connect to the configured Tally Gateway Server and Port.

Possible Reason for Failure

If there is a problem with the LAN connection on your computer, this error may occur.

Possible Solutions

Go to Control Panel and check if the LAN connection is enabled or disabled on your computer. If the connection is disabled, enable it.

Check if your LAN cable is connected to both your computer and the network wall socket.

After you have resolved the network issue you can:

Retry, or

Reconfigure your existing license.