Funny how this thread:
https://www.dropboxforum.com/t5/Dropbox-installs-integrations/Proxy-setting-not-saving/td-p/163531
"is now closed by moderators due to inactivity."
while there are many others still open that are much older... and it was never resolved. Why?
Anyway, on that same subject of Dropbox not allowing you to change your proxy settings.... I had the same issue as described in that post where I have installed the latest instance of DB (offline version too) but it continues with "You are not connected to the internet" & while I can tick the check box at No Proxy in settings, when you click apply, nothing happens.
I realize that was many years ago but one of the users mentioned using Windows 10.
Our corp. installed Win 10 on our machines and since then I have been blocked at every attempt to get DB working again. We are on Windows 10 Pro Version 21H1.
While I am now a security analyst, I also worked for more than 5 years as a desktop support and hardware / software analyst. So I know my way around Win 10 a tiny bit. Still this problem continues for months. I even asked our helpdesk techs to look at it and they thought it was the Network team blocking our access through Symantec or a gpo. This turned out to be incorrect.
The problem is that the DB app keeps saying it is connecting but you cannot change any settings that will actually be saved.
And you cannot sign in because it is stuck on "Starting".
Finally after much searching and not finding answers, I went back to an old trick I learned in 2010. I went to the application executable and changed compatibility mode to win 7. Immediately the application stopped trying to connect and connected. I was presented with the window to sign into Dropbox with my account info. Didn't matter what the proxy preferences were set to.
And since then everything is working great.
Sorry this likely wont help any MAC users. But if you are stuck since Windows 10 update on a corp machine, try it. Won't cost you anything. Odd thing is I have 5 other windows machines with Win 10 Home and they had no issue after upgrade. Only the Pro version has this issue. And it may only be the corp. version we are using. I have no other Pro Win 10 version to test.
My exe is in C: Program Files (x86)/Dropbox/Client/Dropbox.exe
Right click the Dropbox.exe / Properties / Compatibility / change mode to "Run this program in compatibility mode for Windows 7.
Sup. Info. =
Version 21H1
Installed on 4/17/21
OS build 19043.1466
Experience pack 120.2212.3920.0
Hope this helps some.
Sincerely,
Fellow DB user.
waac