Channel with many access points

[R3C]

I got in my home a wifi router and 3 wifi powerline.

I had it configured all to use different channels.

But there is allways conflits.

 

Its better to use different channels or the same for all powerlines

[El_Capitan]

Use a wifi analyzer to find all channels in use in your area, and then set your channels so they don't overlap with any others.

[R3C]

there is a lot channels, the best was to use 5Ghz, but only one powerline can do it and it can't make 2.4Ghz and 5ghz at the same time.

 

But my channels should be all diferent or the same?

[Nerm]

Yes and no. AP's can be on the same channels as long as their coverage doesn't overlap. Think of channels like lanes on a highway. The more cars you put in the same lane the more congested that lane becomes.