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Starting a few months ago some of our users are reporting that Outlook and Teams disconnect multiple times throughout the day. The only way to fix it is to reboot the machine. They are using Outook for 365 and connecting to a mailbox in Exchange Online. It started with 2 users but more have reported the issue recently.
During the time Outlook & Teams disconnect they do not loose network or internet connection and can open Outlook and Teams on the web.
So far I have tried:
I have listed below the version of Outlook and Window 10 they are using.
Microsoft® Outlook® for Microsoft 365 MSO (Version 2205 Build 16.0.15225.20348) 64-bit
Windows 10
OS build: 19044.1766
Using Classic Outlook on Windows for personal email, calendar, and contact management
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
Have any of you tried uninstalling Dell Optimizer? Apparently that has worked for some folks in the very recent past. It has not worked for my issue, but ours may be a bad network (our only users having the issue are in one small office). Something to do with it installing ExpressConnect
Removing DellOptimizer totaly did the trick for us !
Removing Dell Optimizer fixed our issues so thank you to everyone who suggested it.
I have several Dell desktops with this behavior but they are not running Dell Optimizer. I have been dealing with this for months. They randomly get logged out of Outlook and it will not take the passwords. It looks like it authenticates, but goes right back to "needs password." I re-imaged one machine and it was good for a few weeks but having the same issue now. A reboot lets the user open Outlook without any passwords needing to be entered. Not all machines on the domain are having this issue.
What other solutions might there be when Dell Optimizer is not installed?
We are using Office Home & Business and Exchange Online through GoDaddy neither of which Microsoft supports so I am unable to open a ticket with Microsoft. GoDaddy says to call Microsoft as they are just the reseller. Needless to say, we will break up with GoDaddy at our next billing cycle and get Exchange directly from MS in the hopes of getting some support but the business is too busy this time of year to make that transition so I need to find a way to resolve this. Most users have 3+ emails so webmail is not a viable workaround.
We are about 60-70 computers in this office. All run Win10 on HP desktop PCs.
We have had this issue for months now on a handful on computers. Still unable to resolve. This issue is sporadic. There might be no incident for a week or 2, then it will happen to 1 or 2 users. The only consistent thing is that if you reboot the PC, Outlook will reconnect fine till the time it happens. It could the next day or in a couple of weeks.