Windows 7 - Windows 7 Hanging when copying large files

I'm currently getting what it seems like windows explorer ( or the status box when copying ) hangs when i try to copy files over 1gb ( i copy like 5 or more 350Mb files and its rock stable and fast - upto 50Mb/S over a 1 GIG ethernet link )

I notice after its copied around 750 the status box freezes and it seems its not coping any more... its via 1 gb network link , both machines are fairly quick and i'm logged into the machine i am copying from using terminal services

specs of 2 pcs -

pc where files are copied from - Quad 2.4 , 4Gb Ram , 2.4Tb in Raid 5 , Windows 7 X 64

pc where the files are copied to - dual core 2.26 , 4Gb Ram , 500Gb WD Hdd , Windows 7 X64

I beleive its not hardware as i've copied like over 10 gigs of 350 mb files with out issue , only multiple single files > 1gb seem to have issues.

Both PCS are running RTM. 16385

Delphian

As a suggestion, test what happens when you fully uninstall (disabling is not enough) your anti-virus utility and 3rd-party firewalls, if any.

The most likely cause is interference from a kernel-mode filter driver.

This might actually help with a problem I have making system images.