I have a Latitude E7470, connected to my D3100 dock via USB3. I have a Dell E2317H Monitor connected to the D3100 via DP. Works fine having it setup as my main display and extending to my laptop. The problem is the Laptop and or the D3100 are not recognizing the 2 other E2317H Monitors that are connected to the 2 HDMI ports with HDMI to DP cables. The OS kind of detects the monitors but will not push video to them. I have tried every which way I can think of with the OS and the Display Link software and have no joy. Any help would be greatly appreciated.