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foxmuc's avatar
foxmuc
Copper Contributor
Feb 20, 2020

Teams Federation with S4B on premise

Hi Everybody, was there a Change regarding federation to S4B - federation Partners who are on Teams can't see our Status and contact us via IM, since 3 days. To other Partners, who have one premise S4B Servers, federation is working. Seems it's only Office365 with Teams. Thank you, Markus

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  • ChrisWebbTech's avatar
    ChrisWebbTech
    MVP
    Feb 21, 2020
    So you are still using Skype for Business client in Islands mode? The way it should work is Teams will got to your Skype when in Islands mode, so that should still be online. I know a new federation was rolled out, but pretty sure that was completed over a month or two ago so that shouldn't be the issue. Anyway, are they getting any errors etc.? Make sure no one went in and added trusted domain to the list, since that will block everyone else when that happens. Seen that a few times before.
  • ChrisWebbTech's avatar
    ChrisWebbTech
    MVP
    Feb 20, 2020
    Do you have an office 365 tenant? You might have Teams on it that switched to Teams only mode via upgrade which would break your external chat and try routing to teams for other teams users.

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