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Proxy in standard-mode ask for Authentication while "surfing", if user uses multiple MS-Teams Tenants.

Hi all,
We have some users who are repeatedly asked for proxy authentication.
Only users use multiple MS-teams tenants see this problem. (We don't know users with activity within multiple ms-tenants without this problem)

We use AD-SSON and users are not normally asked for a password.
If the query comes to the affected users, they have to enter their AD login data and can continue surfing.

We disabled Proxy-Authentication for Teams and sharepoint pages. Didn't help.

Ideas?

Thanks and Greetings

Dirk



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Parents Reply
  • Hello Dirk,

    can you share the list of Microsoft domains you excluded in this test?

    I remember having to exclude Microsoft domains for some purposes and the list was lengthy.

    Mit freundlichem Gruß, best regards from Germany,

    Philipp Rusch

    New Vision GmbH, Germany
    Sophos Silver-Partner

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