I have a studio with 6 PCs connected to a Windows 7 machine (Home Premium, SP1) which acts as file server. Password protected sharing is turned off, 128 encryption is on, allow windows to manage homegroup connections is on.
The network works fine 99% of the time, but we get intermittent problems which only effect the two XP machines (SP3) we have on the network.
It happens when one of the Windows 7 machines is saving a large file onto the network (seems to be especially prevalent when saving 50meg+ files from Adobe Illustrator CS5). The XP machines will lose their network connection either with a permission error or with a not enough space error.
The problem remains after the save has finished: the XP machines just can't connect. We've found that if we browse the shared drive on the Windows 7 file server itself (through windows explorer), the problem fixes itself. Sometimes it is resolved as soon as the shared drive is opened, other times we need to explore a few different folders before it resolves itself. We think exploring folders with more files seems to work quicker, but this might be erroneous.
This is a very strange problem that has plagued us for a few months now. If anyone has any idea what this could be I'd be very grateful.
