I have been experiencing a really annoying issue...
My network connects at 1Gbps for only 5 seconds and then it notes that the cable is unplugged.
I tried to change the speed to 100Mbps Full Deluxe because the hub works on that speed... but when I enabled the connection, it showed in the notification area :" connected... Speed: 1Gbps" then suddenly it marked that the cable is unplugged.
And to be sure that's it's not a problem from the hub or the cable, i have tried the same thing on my laptop and it 100% worked.
My network card is : Realtek RTL8168/8111 PCI-E Gigabit Ethernet NIC.