What I did to get rid of those 'Invalid proxy configuration' messages: However, Dropbox would periodically give me annoying 'Invalid Proxy configuration' messages (may not be exact wording) in the tray notification area, even though Dropbox seemed to work OK for sending file traffic back and forth.Ģ. It then started working with the proxy server field left blank. I used Pinar's solution above, set 'Proxy settings' to 'Manual'.

My work has a proxy server, and on the old PC, I had set Dropbox Preferences to 'No proxy' on the Proxies tab, and this simply worked. But Dropbox simply didn't work on the new PC, giving this ridiculous, bogus 'Computer is currently offline' message. I got a new Win7-64 PC, replacing an older Win7-64 PC. I have no idea why Pinar's solution works, but it was the only thing that finally, finally, worked for me. Select Manual (for me it was set on Auto-detect, for some reason) I found the solution! Really, really strange, because I have installed dropbox a million times on a million computers, and I have never encountered this. His solution made Dropbox work, and my addition made the annoying 'Invalid Proxy Configuration' messages from Dropbox go away.

It was an addition to a solution from Pinar Celik. Here is a solution that worked for me that I posted on GetSatisfaction dot com.

Dropbox help keeps opening