250002: Invalid Authentication Information

Hi,

I’m getting the “250002: Invalid Authentication Information” when trying to connect the plugin to UPS. Cleared cache, double checked the creds, tried incognito window, checked that I’m running the latest version of the plugin. It connects when using Legacy API type. Give the same error when trying REST API in either mode. When I click on the connect button and log into UPS it redirect me back to the Woo settings page with no changes to the Connect button and no error messages. What’s my next step?

Thanks,

Joanna