spongebob59
Journeyman Pro
Have you got a triband setupI'd agree with this. A new router is still limited in its range. A mesh system will give you more consistent coverage throughout the house.
Like @pauljames87 , we have brick walls, and routers, even with power extenders, didn't cut the mustard. I tried a powerline, but that is dependent upon the quality and routing of the wiring, and I was getting slow speeds with that.