Hello @Eric1 ,
Welcome to the Poly Community. This post was stuck in the spam filter and had to be manually released by one of us volunteers.
I am pretty sure Microsoft does not support UC Software 6.4.x so downgrade to 6.3.0 or 6.3.1 and try again.
I can see the logs are full of:
0714112530|nisvc|2|00|HTTP SEND:: DestUrl(https://login.microsoftonline.com/common/oauth2/token?api-version=1.0), HttpResCode(400), curlRetCode(0) retVal(0)
0714112530|nisvc|2|00|ErrorBuffer::
0714112530|nisvc|2|00|
From our Microsoft FAQ:
Jan 17, 2017 Question: How can I troubleshoot simple Skype for Business, Office365 or Teams issues?
Resolution: Have a look => here <=
The next step would be a ticket with our Partner Microsoft as they host the Platform you are trying to use.
Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.
Best Regards
Steffen Baier
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If official support is required please check how to phone or open a case here
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The title Poly Employee & Community Manager is a community setting and
does not reflect my role. I am just a simple volunteer in the community like everybody else. All posts and words are my own & do not represent the views of Employer.
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Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge.
Please also ensure you always check the VoIP , Video Endpoint , Microsoft Voice , PSTN or other FAQ's in the different sections
