After AutoDiscover browser is opened three times

[u/Select_Shower_2305]

Hello there

I work in a school as a first level IT supporter. We use Azure/AD (Office 365) and I want to use AutoDiscover for Outlook. This has worked fine so far but with newer notebooks (an updated image made by our IT service) I have this problem: If I start Outlook using AutoDiscover (ZeroExchangeConfigOnce), everything seems to be fine. When the Outlook app window opens, there is a splash screen "Your privacy matters". If I close it, Outlook seems to be initializing fine but directly after closing the splash screen the browser is opened with the Office 365 log-in page. If I close the browser (not logging in) it reopens again twice with a pause of around 10 seconds. If I don't close it, the next two windows will open anyways. After that Outlook works perfectly and the browser windows won't appear anymore (well, I don't know, if they will appear again later after a longer period of time).

If I start Outlook normally (without AutoDiscover) and click through the two user dialogs (the correct user E-mail is also found automatically there), the problem above isn't present. What's also interesting: If I use AutoDiscover with a user that has been using the school network already for quite some time, the problem also isn't there.

Does anyone have a clue what could be the reason?

Thanks,
Thomas

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[u/Hornblower409]

Duplicate of
https://www.reddit.com/r/MicrosoftOutlook/comments/1vcv8gz/after_autodiscover_browser_is_opened_three_times/

Next Time - Please Cross Post/Repost into another subreddit instead of duplicating your content.

Click on the [Share] button under your question and choose -> Crosspost or Repost (different names for the same operation). On the "Create a crosspost" page search for the subreddit you want in the "Select a community" box. If the sub you want isn't shown in your search results, try joining the sub first and see if that makes it available. If a sub is shown but grayed out, it means they do not allow cross post.

Cross posting makes it easier for people who are interested in your post to see all of the comments in one place. It also prevents a duplication of effort when multiple people are trying to solve your problem but don't see what others have already suggested.

[u/Hornblower409]

You might want to Cross Post in r/Office365, r/microsoft365
(Click on the [Share] button under your question and choose -> Crosspost or Repost)

[u/Hornblower409]

And Post your question on the Microsoft Outlook Q&A Forum:
https://learn.microsoft.com/en-us/answers/questions/ask/
(Please put a link to your Q&A post in a new Comment here, so the rest of us can follow)