Guys I've been looking to a solution for this and it's driving me nuts. I have Server 2008 r2 standard. When I copy or move a large file (say 400mb and up) to the the server it starts out fast and slows to a crawl. For example it will start at roughly 100MB and stay there until maybe 2/3 to 3/4 of the way through and then it's like it just hits a wall and starts incrementally slowing down. It may end at below 10MB transfer rate. I've been searching high and low and there seems to be a pretty common issue of Server 08 having network issues with large files.. I've tired every fix I could find but nothing has helped - i.e. changing tcpip offload, dma, autotunneling, enabling/disabling Remote Differential Compression,etc. I am using both Win7 and XP to transfer from/to. It happens exactly the same transferring/copying from either machine. I do NOT have this issue transferring between just the XP and Win7 computers. All drivers are up to date (I've tired different versions) and all applicable operating system updates are installed. By the way, this is a 1GB network with a completely fresh load of 2008R2, no antivirus, no installed applications.