Can anyone advise why pushing 12gb of files from my Win 7 machine to an XP machine is cruising at 7.61MB per sec with all hardware between being 1gb hardwired.

Hi, This issue can occur by several factors, such as too small files, incompatible NIC driver or third party programs. At this stage, I suggest you perform the following steps to troubleshoot the issue. 1. Temporarily turn off firewall on each machine and check whether the files can be transferred quicker. If not, please restart the machines to Safe Mode with Networking and transfer files again. 2. Upgrade the NIC driver to the latest one for a test. Thanks, Novak