This is something I have found since we have upgraded to Win2k. If I do a basic authentication to WWC to access the admin pages, something goes in memory as after a few transactions to our VFP WWC server, the incoming requests will be cut. This happens for several transactions. There is no specific pattern. If I don't go in the WWC admin page, thus no login, I'm ok. But, as soon as I do a login, after a while, I'll have this situation. Whenever I have to go in the WWC admin page, I usually close the browser now and restart. The problem won't appear.
I have WWC 3.65. I haven't tried that with 4. I run Win2k with a lot of RAM with all the latest patches.
As I mentioned, it does not relate to our code, as external factors have an impact on it. Such as closing the browser will do ok before proceeding with other transactions. Also, if I don't go in WWC admin page, I won't have this situation either.
It only affects me and not the users. But, still, this is really weird.