@rbodych To rule out wireless interference issue, scan the 2.4GHz band around you with this software and select the least crowded wireless channel: https://www.metageek.com/products/inssider/ Also...

@Lordwanswell You should test that on your own. If your Plusnet router has an ethernet port dedicated for a broadband connection it probably would do the job. But I will recommend you to buy a new...

@JC0309 No, you can't use one SSID like OneMesh. See the difference here. You can refer to OneMesh FAQ - Q9/A9 as well.

@JustMe2022 Configuring AP200 should be straight-forward procedure. If C7 LAN IP address is 192.168.0.1 then AP200 LAN settings should look like this: Configure the AP200 IP address and gateway. It's...

@rbodych If you can't see them on Auto then set to WPA/WPA2 PSK (AES). Smart Connect should be OFF. Try setting MR600 on channel 1, 6 or 11 if still can't see the Xiaomi devices and test again.

@Giovanni2903 You can try the beta FW from this post. It has the possibility to disable the OneMesh feature if you're not using it. Use this article for selecting the least crowded wireless channel -...