Well, to the untrained eye...
View attachment 53172
Okay, so basically, pay attention to the 5ghz WiFi blob, as that determines the support duration more than anything else?
Heh, I usually run WiFi APs around homes and don't even have the router WiFi turned on. I can't remember when I actually last used the WiFi on the router. I think I briefly did on my old RT-AC3200, but haven't used it at all on any models since then.
The WiFi is literally the "feature" killing them off early? That's a real bummer, since it's all the other stuff that matters to me. If I want a WiFi upgrade, I just swap in new APs. Most homes in the area have crawlspaces and odd layouts due to the whole town consisting of 1900's homes brought over on sleds when the coal mines shut down. The thick floors and walls hammer the signal, plus those central kitchens with all the big metal appliances in the middle, so the best thing is usually to run a network cable through the crawlspace or attic from one corner to the other, and stick two APs in place. Gets a perfect signal everywhere, including in the garden. I haven't bothered with centrally broadcast WiFi since that's what Shaw and Telus do, and it never works - but their solution is to add 2-5 repeaters and turn it into an abysmally slow mess... lol
Anyway, appreciate all the insights. I now realize that how I use these routers is "different".