Hello @Alexandre. Thanks a lot for your response and troubleshooting hints. 👍 I failed on the first test. That means problem is with my ISP provided router TP-LINK AC1350. It's very possible that...

Hello, I have the following setup: 1. Router TP-LINK AC1350 provided by ISP with DHCP and DNS enabled, Wi-Fi is disabled In first room 2. Switch TP-LINK TL-SG1005D connected to 1. via cable through...