I have a 3-pack of Deco x20. Main Deco working as wireless router and the two other units are both wired to it using a TP-Link Gigabyte switch.

My mobile constantly looses internet connection (still being connected to WiFi). I can't open single web page on my Android phone, while at the same time internet on my wired PC is okay.

On the phone the WiFi strength icon gets an exclamation sign and then phone switches to mobile data and connects back to WiFi 20 seconds later. That happens every 2-3 minutes even if sitting next to the main Deco unit.

I tried running network optimization in the Deco app. It tells me that my *WiFi channel is overloaded*. After optimization network works fine for 5-10 minutes and then starts disconnecting again. Deco app keeps saying the channel is overloaded (tried several times).

There is no way to select channels manually.

Disconnecting happens on all devices at home -not just the phone.

What can I do make the network usable? --Currently I can only work on my mobile data or on wired laptop.