@Ivaylo Nice! Thank you for your detailed explanation, that's what I'm also theorizing about the effects of disabling DHCP. Now for your suggested 'experimentation' on guest network, yeah sure will...

Hi team, I just made to repurpose my old router again for range extender/repeater mode connected to my new Archer C54 (on 2.4 ghz), WDS is perfectly working! However, when I enabled the bandwidth...