@M1BYT According to description from the user guide, the port should work as any other port where a device is connected (light up). But as you said - there's no problem when using the switch and you...

@Jason_F This is from the PLC FAQ: Q3.4: Can Powerline adapters work if they are separated by different electric circuits? A: No. If they can pair in the same room, but the powerline LED turns off...

@M1BYT From switch installation guide: Q2. The Link/Act LED is not lit when a device is connected to the corresponding port. It is recommended that you check the following items: A1: Make sure that...

@harshitgoyal742 AFAIK there's no such mechanism As you stated: "If any devices using this WiFi have their own hard-coded DNS settings, it circumvents the router's DNS settings." Many people are...

@Bajoras If any other device in your network can connect to C20 5 GHz band that means most probably the problem is with your new PC wireless network card settings. Check wireless network card...

The same happens with Deco M4 main unit - here.