Apr 13 2021 08:42 AM
Has anybody been using ADFS with Teams noticed an issue with the last two firmware updates, when performing logins off-network?
I have a customer running Yealink MP56 phones and the latest firmware 122.15.0.36 running Teams App 1449/1.0.94.2021022403 or 1449/1.0.94.2021033002 can no longer login using either the device login code or typing user/pass. The login seems to get stuck in a loop between device registration and preparing the device.
I suspect this is partially to do with the ADFS configuration not using UPN for authentication, but this wasn't an issue prior to 1449/1.0.94.2021022403.
Apr 13 2021 01:53 PM
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Apr 15 2021 11:59 AM
I am assuming you are using ADFS? Did Microsoft gather the ADFS logs from your failed attempts? I'm working on gathering those myself.
I've gone back and done additional testing and it doesn't appear to be limited to a particular vendor. I've tested with Poly CCX 400, CCX 500, and CCX 700, AudioCodes HD450, Yealink T56A, T58A, and MP56. It's after deploying the February update which appears to be bundled with most of the latest firmwares from the vendors, things break. Going to roll back a few firmware and do additional testing to verify.
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Jun 30 2021 09:14 AM
SolutionSo I have a small update from Microsoft on this, and it's more of a temporary fix from what I understand.
Wait a few minutes, and reboot the phone, login again.
I'm still trying to find out how to resolve the issue correctly, but this seems to have helped most of the cases I've had issues with so far.