@TK42 Turn off 2.4GHz on Main Network and if Guest Network enabled - on Guest Network, too. See if it helps. WiFi 5GHz produces much less interference.

@PaulPP This may be one of two things: 1) Hardware issue with Kitchen Deco Ethernet ports, or with Ethernet cable it is connected to; 2) The way you wired Kitchen Deco does not let it use Ethernet...

@raku99 You have correct expactation, but you would not be here if Main Deco worked as expected. Here is workaround I could recommend. Get smart plug, connect Main Deco through it and program smart...

@David-TP I think the original question is similar to discussed here: Deco S4 power adapter barrel plug size

raku99 wrote The router is programmed to restart every morning at 5AM. Everything works fine except that sometimes main Deco M4 - when I get up - shows constant red light - it seems that it cannot...

@19_pc_85 With Deco E4, these are the options you have: 1. Move Deco floor 2 and Main Deco further apart from each other, so that Deco floor 2 can't connect to Main Deco. If signal between them is...