Spero

Very different machines but some are very high spec. Also we have recently upgraded to fibre on the switches so nothing will have a slow ping. The latest machine to have this problem was E8500 processor with 4gb.

No, only on some clients and the INI line is CommandTimeout=100000

Tried that and still the same. I have also tried to reinstall .net frameworks (various versions), log in as another user, reinstall SP3 but nothing has worked yet.

We have just has a client .Net update to version 4 and this was happening before and is still happening now so Client .Net is ruled out. Good idea though as this was one of the many fixes I have tried.

I recent problem has started to happen on quite a few machines within our school and that is SIMS.net will hang when you use any drop down menu. As this has happened to a few machines, I am assuming that the problem is either with a recent update or something on the server but I have been unable to locate the problem. If I do a full reinstall on the client, it will work for about an hour but then go back to hanging as soon as you use the drop down menu. I have been looking into this for some time so any help will be greatly received.