offside said:
Mine did not work with extension cable.
You wrote that once already, i know for a fact that the previous owner of your sled used extension cable because i was there and helped him the first time he used it, so you have either something with your computer or your extension cable.
1-2m (3.4-6.8foot) isn't long and doesen't effect signal strength much, but as i wrote earlier, everything is possible, some computers maybe have bad usb controllers and cant read weaker signals, ever so slightly, so if you don't get connection after upgrading drivers, try without extension.