The Microsoft files on Windows 11 are prompting for a Dropbox sign in every time I try to open them.

I did this only in Excel: "I solved the issue by going into account privacy, manage settings, and turning off all 'Connected Experiences'"

then restarted the PC, and I no longer have the pop-up asking to log in. 

although I also note that a windows/microsoft update was installed when I restarted - I can't confirm if it was the update or the changes I made that fixed the issue. 

This is also an issue for us. In Excel if I login to Dropbox through the pop-up then macros no longer work and I can't get them back on at all. If I just close the pop-up then the file works as normal. Having to close the pop-up every time is very annoying and gets in the way of any automated files.

I've tried a lot of the suggestions in this thread with no success.

Also having this same issue. It is causing issues with other linked workflows so needs resolving ASAP!

Hey everyone! I just wanted to let you know that our team is still looking into the matter.

I can also see that some of you have already tried this workaround, but can you all please attempt to close the sign-in window first before accessing your files? Does it come back after that, or does this temporarily solve the issue?

Hi Nancy. 
I’m not sure what you mean by close the sign-in before accessing files. The login appears WHEN you open a file, and that’s the problem. You have to then close the sign-in window multiple times before the file opens. 
This, for me, is when accessing a file via Windows Explorer.  

if you mean completely logout of the Dropbox app, well that kind of defeats the point of having Dropbox…

This has been ongoing for a week, and several releases later has not been resolved.

Needs to be elevated/escalated.

Seems widespread was politely told 'we are working on it in chat support about 6 days ago.

Is there an actual case open?

If I close the window prompting for the Dropbox login, I can then open the Excel file. I then I open another Excel file, the Dropbox login window appears once more.

I’m experiencing significant inconvenience as well. The same issue keeps recurring, and it's making me question whether we should continue using Dropbox at all. Starting today, our entire team has begun raising concerns about this issue. It's so extremely, extremely, extremely frustrating that we’re seriously considering switching to a different service if it’s not resolved immediately.

@Nancy, EvermoreUW​ is correct.   The popup appears every time you try to open an Office file, either from File Explorer or directly within the Office application.

Closing the pop-up allows you to get into the file, but it will appear every single time you open a file. 

What's even worse is that if you use document linkings (meaning you have a word doc pulling excel data into it from an excel file) the window will pop up for every single linking in that word doc. This means if you have a word doc pulling 20 links from an excel file, the pop-up will appear literally twenty times before you can open the word doc. And sometimes, it pops up BEHIND the word program, meaning you have to alt + tab to get to the pop-up so you can then close it. 

It literally takes me about 5 minutes to open some of the files we have at my firm and it's unbelievably frustrating.