I have connected 2 monitors via DP and wanted to use the network cable over them. Unfortunately, the network connection is unstable. Most of the time Outlook loses the connection first. Can't say for sure if this is also due to the setup of the company laptop. In any case, I have to plug the network cable directly into the laptop, then it works. I also have a 3rd monitor connected via USB graphics card and HDMI and the USB graphics card has probably just broken. As it gets very hot I wonder if it was overload although I only use 4k at 30Hz. In any case, I'm thinking of taking the 3 monitor version of the docking station if I get the money back for the USB graphics card (also i-tec).
Question therefore:
Could the problem with the network cable be due to the old chipset and then with the 3 version one cable is really enough? - I currently need USB-C, power and network cable on the laptop.
Thanks a lot
MfG Alexander Prill
In normal operation, I have one monitor connected directly to the computer and one to the i-tec dock, and the Ethernet cable is also connected to the computer. I have now carried out a test with both monitors (resolution 1920x1200) and the Ethernet cable connected to the dock.
Result: The network connection is stable, even over a longer period of time. But: The throughput for download via Ethernet was massively lower in the test setup. Instead of downloading at 520 Mbit/s, I only received 34 Mbit/s, i.e. 15 times less. The upload throughputs, on the other hand, were practically identical. Tool for measuring throughput: cnlab speedtest (
https://speedtest.cnlab.ch). Computer: Intel NUC10, Core i7 processor.
In the test setup, the signals for both the monitors and the network flow over the same cable. The bottleneck may lie in the electronics for generating/decoding the signals for transmission via the USB C/Thunderbolt 3 cable, both in the i-tec Dock and in the computer.
With only one monitor on the dock and the Ethernet cable also on the dock, the download and upload throughputs were normal (i.e. 520 and 50 Mbps respectively).
Conclusion: Operation with two monitors and the Ethernet cable on the dock is not optimal.
