My MediaCenter (running Windows 7 x64) has me puzzled. I've started seeing really slow upload speeds from the computer - so slow that the Xbox 360 won't connect anymore.
I've tried two "internet speed tests" and they all give my about 50 Mbit download and aprox. 1 Mbit upload (I have 50/50 Mbit fiber connection).
My setup looks like this: Fiberbox -> Router -> Switch -> Computer/Xbox 360/Printer etc.
That is, everything is connected to the switch, which is a 1000/100/10 Mbit device from 3Com. If I plug the computer directly into the router (which has 4 ports) I get the upload speed I want. This led me to buy a new switch (from D-Link which also is a 1000/100/10 Mbit device). However the problem remains the same!
If I hook up my laptop to the switch there's also no upload speed problems, so I've concluded it must a problem with the MediaCenter?
One final note, however! I've tried using a old 100/10 Mbit switch from 3Com instead of any of the GBit switch and that works just fine (ie. upload speed is as expected...)
Any help on this would be great :)