Network cable unplugged

September 14, 2011 at 08:05:39
Specs: Windows 7
Here's my problem, If I connect to a cable modem my PC tells me a network cable is unplugged, but if I put a NAT device between my modem and PC, I don't get that message and I have connectivity. I work for a cable company and am seeing this more and more. Does anyone know what causes this? I can cure the issue by inserting a router but that doesn't really fix it just bandaids it.

See More: Network cable unplugged

Report •

September 14, 2011 at 08:36:38
Are you using crossover or straight-through? Try switching the type of cable.


Report •

September 14, 2011 at 10:51:54
Not the cable type. I have a modem router combo that the machine works perfectly on but if I disable DHCP on it forcing the pc to use the public IP 75.x.x.x, it stops working and the machine tells me the NIC is not connected. Re-enable DHCP on the modem router combo and it pulls an 10.x.x.x IP and surfs again.

If I take a router out of the box and connect the PC to it, (just the router, leaving WAN out of the equation), the PC will pull the generic 192.168.x.x, change the LAN DHCP range to any A block range and it will disconnect and tell you the cable is not connected, even though it is still physically connected and all you did was change LAN side range.

Report •
Related Solutions

Ask Question