If you are getting "Authentication Failure" while login in Excel plugin, please check the below steps:
- Check if your Authkey is disabled, enable the Authkey.
- Make sure that your password does not contain any special characters.
- Make sure your IP security is off.
Note: If you are getting No internet connection error then check the Microsoft Excel version. Supported Microsoft Office Excel Version: 2007-2013.
If the issue still persists contact email us at [email protected]