I have quite the strange problem, but maybe someone here can steer me into the right direction. I am in the process of realizing a small vanity project for the boss (he wants a TV in the lobby that loops our marketing video, I'm streaming with a Plex server the 10 hour rendered video to the TV). Everything is set up and working (WiFi) but the LG TV does not want to talk with our EX3400 via ethernet cable.
I tried changing the Flow Control of that switch port, the Auto-Negotiation, manually to 100 mbps etc, a lot of combinations, but nothing works. Half an hour ago I dug up a super simple, unmanaged 8 port Netgear switch and connected it to the TV and the EX3400 and it worked instantly, which tells me that it is not the LG TV. I'm suspecting now that the allegedly "damaged" webserver of our photovoltaic contstruction is also not really damaged but has the same problem with the EX3400 as the TV.
Do you guys have an idea what is causing this?
Thanks and best regards