Have setup several new licenced users. All ok, however when trying to setup local Outlook 2010 with 365 exchange accounts all fail. Had no problem with initial users before upgrade however no joy with new ones.
Remote Connectivity Analyser returns the following:
An HTTP 401 Unauthorized response was received from the remote Unknown server. This is usually the result of an incorrect username or password. If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN).:
Although user & passwords correct.
Any Ideas please