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CptnGridIron's avatar
CptnGridIron
Copper Contributor
Jun 30, 2022

Outlook Disconnected MFA causing issue

Hello, have researched all over for this specific issue and have came up with a lot of information, however, no permanent fixes.  Have some mailboxes that seem to keep going into disconnected checkin...
exchange
office 365
windows 10
NickWhittome1620's avatar
NickWhittome1620
Copper Contributor
Jul 27, 2022

CptnGridIron 

Yup - identical experience.  Multiple disconnects per day - particular after coming back from hibernation. Connection status showing error in authn column.  Other Office apps impacted too as they will hang when trying to access SP/OneDrive.  Only option is to reboot.  Went even further than you - completely wiped machine and rebuilt but issue came back.  Deleted OL profile multiple times. Searched high & low for answers but no joy.

Also believe that this is related to MFA as I only ever experience this when out of the office.  The office egress IP is defined as a trusted location so users never get prompted for MFA when here.  My machine works flawlessly all day when here.  Deeply frustrating...

CptnGridIron's avatar
CptnGridIron
Copper Contributor
Jul 27, 2022

NickWhittome1620 

 

I’ve mostly given up and pushed the people having issues to the PWA, seems to slowly be a cascading nightmare every couple of weeks a new person same issue.  Not even sure where to go with it.

  • NickWhittome1620's avatar
    NickWhittome1620
    Copper Contributor
    Aug 12, 2022

    CptnGridIron 

     

    Quick follow-up on this one.  This is not definitive and I'm still testing...but results so far are interesting.

     

    I was noticing that when the issue happens, it's not just Outlook.  Issues with SharePoint files not saving/syncing and very odd issues with our corporate VPN where I could connect and ping internal resources but not access any web interfaces.

     

    I also noticed that when I recently spent several days in another location and exclusively on wi-fi, the issue did not happen once.

     

    Long story short, I found that the issue happens when at home or in the office (forget the previous comment about the issue not happening in the office - it did happen!) and when connected via ethernet (using a dock) and connected to wifi at the same time.

     

    Still testing...but at this point, if I disable wifi when docked, the issue does not happen. 

     

    My device is a Dell Latitude 5420.  Would be curious if anyone else can confirm this behaviour.  Will revert back after a few more days of testing.

     

    • Micke640's avatar
      Micke640
      Brass Contributor
      Jun 29, 2023
      https://www.reddit.com/r/sysadmin/comments/10laf9n/dell_optimizer_causing_outlook_and_teams/
    • CptnGridIron's avatar
      CptnGridIron
      Copper Contributor
      Sep 01, 2022
      Still happening here as well. Haven’t had anyone check outside of the office yet, but I do know our issues are all internal. I’ve messed with conditional access and pretty much made it so MFA wouldn’t be a problem and still happens. After a restart connects for about 2 days and then nadda. We’re a Dell shop too. I hate handing out the PWA still even as a temp solution it’s not bad, but would like to know where the issue is and why.
      • NickWhittome1620's avatar
        NickWhittome1620
        Copper Contributor
        Sep 02, 2022

        CptnGridIron 

         

        FWIW...the issue for me has been completely resolved by making sure that WiFi is turned off when the devices are docked and connected via Ethernet

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