Wednesday, July 3, 2019

At lost - random network problems regarding Office 365

Since multiple weeks we have those weird problems, where we can access the internet, but not our synchronized Office programms, Outlook or Sharepoint for minutes at the time. This happens via LAN and WLAN connection in the same network.
We made multiple tests to ensure, that not our internet connection is at fault. The problem only and exclusively resolves around the Office 365 package.
We can access our Sharepoint and Office package through mobile data via smartphones though.
Everything seems to work, except using everything Office 365 related in our network. Sadly, the Microsoft Support Team couldn't help us yet, even though we send multiple log files.

I don't know if it matters, but we use our fixed IP for internet access (at least, this is what shows up when I check "whatismyip".

Do you guys have any idea, why this is the case and what we can try to resolve this? I would be incredibly thankful.

I have following ideas, but I do not know if they are worth trying:
*Changing the DNS to 1.1.1.1 and 9.9.9.9
*Disabling the Firewall, Anti-Virus-System and VPN for only one Computer and see if the problems still occur (I don't know if this is possible)



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