A Strange one. Have a play. Have setup windows 2003 server. It's the only server on the network. It's configured with active directory and it's obviously a DC. When copying files to-from server it's really S-L-O-W. Two hours to copy 76Mb It happens from different workstations. But heres the catch. Sometimes (quite often) it will speed up part of the way through a copy process. This is often associated with creating another network connection to the server. When it speeds up it flys I've done all the obvious... re-installed the network drivers changed the ethernet card. Used a direct connection between the server-workstation Used admin account Different shares Different disks Event log doesn't show anything amiss I think it's now something internal to 2003 server. Something is not quite right Anyone any ideas!!!! Ta

Hi, I hat the same problem. After I changed the switch to a new one the problem was solved. I tryed then to upgrade the firmware of the old switch an the problem was also solved. lg, Berni

Thanks for answering Berni... I thought Something like that might be going on hence I use a swapped cat 5 cable directly between the PC's. The problem persisted. The story continues

A few hours have passed and I think I have found a cure. See.... Microsoft Knowledge Base Article - 321098 Creating and setting the TcpDelAckTicks to zero has solved the problem. Don't know what the implication on server performance for many users would be though.