After Installing and adding the Google account details in the connector, we will get Error message as shown below;

Error Message:

{"isMccAccount": false, "message": "Authentication done.", "autoTaggingStatus": true, "accountId": "20171031145437"}



The issue seems to be due to browser JavaScript Issue or some popup blocker.

Kindly disable any popup blockers if available and JavaScript has to be enabled on browser.

If this is not working try to re-connect the Adwords account from different computer.