40m LAN Cable Automatically "Unplugging" Issue on Windows8/7.

ratazoit

Honorable
Dec 29, 2013
2
0
10,510
Hello People!
I recently wired a 40 meter CAT5e cable to my desktop upstairs. But when I connected the line to the desktop, it was recognized at first. But when I start to browse internet or I check for updates, the Network Sharing Center indicates that the line is unplugged. And later the cable reappears.
Whats wrong?
FYI: I checked the router with a 1 meter long cable and it worked.
I use a ZTE ZXV10 W300 router.