Lenovo USB 3.0 Dock ethernet driver problems with fix IP

[zaplov]

Hi I'm having trouble with a lenovo X1 Carbon and the lenovo usb 3.0 dock's Ethernet. I have installed the displaylink update DisplayLink-7.4 M0 and my Operating System is Windows 8.0 Pro.

The gigabit ethernet port work correctly in DHCP. When I change the configuration of the adapter with a Fix IP (TCP/IPv4) and I apply my settings, the last configuration is lost.

Any help would be appreciated

Thanks in advance.