I am experiencing authentication problems when connecting to M-Files cloud vault. New M-Files servers now support multiserver operation and the login procedure for the REST interface changed a little.
Error in the log:
2021-07-26 115:14:046 | Error | Token-based authentication failed.
I am considering this a bug in the M-Files Connector.
There is additional information here : https://developer.m-files.com/APIs/REST-API/Authentication/#multi-server-mode-considerations