1gbps laptop network card issues Realtek 8168b
Got a very weird problem that myself or none of my colleagues can figure out!
We recently brought 20 laptops, exactly the same model with exact specs.
We have one particular laptop where we have had issues with it not being able to get a network connection through the onboard LAN. The network card built in is a Realtek RTL8168B/8111B Family PCI-E GBE NIC.
It doesnt connect at all and just says "LAN is not connected".
We sent it back to the manufacturer of laptop (Novatech) and they said there was nothing wrong with it and even phoned us to check. We said we tried various network ports and couldn't get it working.
To give you all a picture, the majority of our network is gigabit to the majority of network ports around school and there are a few which are still 100mb. We mainly use Netgear smart/layer2/layer3 gigabit switches and have a few DLink gigabit switches. We also have a few Smart managed 10/100mb switches with gigabit uplink ports.
After a bit of digging around what was interesting was we managed to get the laptop LAN to work when connected to a 10/100 switch but niether the Dlink or Netgear 1gbps switches would make a connection at all. All the other 19 laptops work fine though whatever switch they are connected to.
We thought it could be a driver issues so matched the driver with the other laptops, even updating the driver on this problem laptop but still hasn't worked.
I am convinced it must be a problem with the laptop. Has anyone else suffered this issue?
Has anyone got any ideas of what this could be? we are confused...