Server connection timed out in Expression Web (Fixed)

Yesterday I opened a relatively large file (140 KB) in Expression Web, and upon saving I got the message “server connection timed out”.

I copied the html source to avoid doing the same editing again, and restarted expression web. Nothing changed; upon saving here is the same message that “server connection timed out”! IIS configuration was fine, I didn’t know what to do.

Searching the internet I found nothing. Desperate as I was I opened a smaller file (5 kb) to see if the problem remains. Expression Web did not refuse to save this file – and after this file was saved, it was able also to save the larger one!

I don’t know how this can be explained; it’s another one of Microsoft weird things that keep surprising us.