wase471111

its a little above your range, but this is the top of the line asus wifi mesh 6e stuff out now..works great so far for me; was on sale until today of course, but should go on sale again soon

https://www.amazon.com/ASUS-ZenWiFi-AXE11000-Tri-Band-ET12/dp/B09QRLZMMH?th=1

what's your budget?

you are probably right. get ax or axe mesh and you should be fine

you have to get your router/wifi gear out of the closet, first thing, then see if things improve with your current gear instead of buying new stuff first

8 years with the same router and switches is living on borrowed time; replace all of it, you got your moneys worth out of your current stuff