How to fix connection problem in Teams Assemblies from Poly and Yealink devices

Hayes Arabella 0 Reputation points
2026-08-25T23:46:15.56+00:00

When I try to connect a Yealink or Poly video conferencing equipment, it sends me the following error, in assembly leagues.

It is worth mentioning that the room has a professional Teams license.

Microsoft Teams | Microsoft Teams for business | Meetings and calls | Other
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  1. Alina Le 4,920 Reputation points Independent Advisor
    2026-08-26T00:49:07.08+00:00

    Hello @Hayes Arabella

    As you have mentioned, you are trying to join or connect a Poly or Yealink Teams Rooms device to a Microsoft Teams meeting, but the device displays a connection error when attempting to join the meeting.

    First, I need to clarify that I can only review the information you have shared and provide guidance based on that information as much as possible. However, I cannot guarantee an exact solution, as proper troubleshooting may require access to a similar environment and the necessary tools to investigate the issue directly.

    However, I would like to clarify a few points to see whether I can find any related information to support you:

    1/ Might I confirm the full error message that appears when you try to connect? It will be easier to investigate based on the exact error message and identify the specific issue you are encountering.

    2/ Have you encountered this error before? Also, has anything changed recently that may have led to this issue? Reviewing any recent changes may help narrow down the possible causes.

    3/ Does the device show any health alerts in Teams Admin Center?

    -> Check the Admin Center to see if there are hardware or software warnings related to the device.

    4/ Are the date, time, and regional settings on the device correctly synchronized?

    5/ Does this error occur across all meetings or only specific ones?

    -> This helps determine whether the issue is device-related or tied

    6/ Might I confirm whether you are the Global Administrator of this organization's tenant, or whether you have a point of contact who has administrative access?

    Looking forward to hearing from you from you!


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