I have a user that is experiencing a problem while trying to upload pictures from the network. She has a laptop that has a 10/100/1000 net card and I have her connected to a WS-X6148-RJ45V line card in a 6509 chassis at 100 full on both ends (not auto). Trying to upload a picture (961 KB) The status bar for the upload does not move and eventually the program will time out. If I use her wireless card to connect to the network I am able to upload this file (the AP is connected to a WS-X6148-GE-TX line card). There are 4 other line cards of the same type (WS-X6148-RJ45V) in this chassis, I have moved her connection to each of these with the same result. I also tried a workstation pc on a different network drop with the same result. I moved her connection to a WS-X6148-GE-TX line card and it worked fine (almost instantaneous at 1000 Mb). I run IP telephony so I had to re-connect her phone, then from her phone to her laptop (I'm back down to a 100Mb connection again) and it worked fine. Any thoughts on this??