![]() ![]() Still no fix.Īny ideas? I have tons more information/screenshots/debug outputs I can provide as needed. Support has screenshared with me while i'm remoted into the DC/DNS server. Multiple support calls to Microsoft with about 10 hours total spent on the phone have gotten us nowhere on this issue. Please be aware that this is completely independent from the Basic Authentication strategy that Microsoft is following. It will show something like Microsoft Outlook for Microsoft 365 MSO (6.20384) 64-bit. Closing Outlook and re-opening does not fix the issue.Īny ideas here? I've been dealing with this for about a month now. To check the version of Outlook you are using, select File > Office Account > About Outlook. This usually lasts for 30 minutes to an hour before the connection is restored, or until the client machine is restarted, which instantly fixes the problem. Other machines on the same network (and joined to the same domain, using the same DNS server ) will still be able to connect and nslookup will not fail on the other machines. While this is happening, nslookup for will fail on whichever machine is currently experiencing the connection issues. Occasionally, (ranging from 0 to 5 times per working day, per machine) the Outlook clients will lose connection to Office 365 whilst still remaining connected to, well, everything else. We use Office 365 Exchange with client machines all running Windows 7 Pro, and either Outlook 2013 or 2016 on each machine. ![]() For Excel and Word, when you try to open a File from SharePoint in the Desktop App, you get an access-denied error, when you say open it Excel/Word online no problem. I'm the one-man IT department for a small business. Even tried the Outlook repair thingy, which created a new profile, but after that we were not able to add the users account to Outlook. ![]()
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