For some reason accessing my NAS drive is very slow on a Windows 8 PC. It was fine until about a week ago, but then suddenly it dropped from ≈30MB/s to ≈100KB/s. The internet is working fine (a lot faster than it is possible to access the NAS). All other systems on the network are connecting normally through the same ethernet switch. I've be troubleshooting like crazy but I can seem to make any sense of it. I've tried: - Reinstalling drivers. - Firmware. - New ethernet cable - Plugging a different system into the same port on the switch (worked fine) - Connecting it directly to the router rather than the switch (still slow). - Connecting NAS directly to the NIC (suddenly worked at normal speed (?)) - Running a linux live CD (still slow (??)) - Probably some other stuff. As far as I can tell I've more or less ruled out settings/drivers (by finding the same problem on a different OS), but I've also kind ruled out most hardware issues (including the switch) by playing with different configurations and systems. Ahhhh! I realise the fact I've tried loads of stuff isn't exactly conducive to lots of responses, but any ideas before I throw in the towel and by a new NIC would be much appreciated.