What’s the service? Like the upload and download? But yeah you could probably get a better router if your Wi-Fi is that unstable and just replace your current router as long as your router is not built into the modem but if your router combos with the modem you can put your Gateway into bridge mode.
I really like speedof.me. it gives you a more accurate view of how your internet worked because it will graph what your download and upload looked like for the time it was testing.
I’ve used UPS battery backups for my modem and routers. As long as the outage doesn’t take out the provider that has given me about 2 hours of Internet during power outages.
So I just got gigabit fiber and because I didn’t have time to research and buy my own router I just let them give me the router from the ISP as for at least the first few months they’re giving me a rental credit so it’s actually free for the time being. I love that thing and of course provides good speed and all that but the Wi-Fi is impressive the house is about 2,400 Square ft one level approximately 75 ft long 20 something feet wide the router has always been in the spare bedroom / office which is off center but close to the center of the house. And the Wi-Fi signal has always had trouble reaching the master bedroom on the farthest end of the house. For years I’ve used a Wi-Fi extender and that has been fine and has worked well but it didn’t matter what router I got the Wi-Fi signal never reached where I needed to go.
The new router that my ISP provided is calix gigaspire 6.1 and they advertise it as doing 4,500 square feet. I have Wi-Fi outside a few hundred feet from the router on the far end of the house so I get halfway down the driveway before I lose my Wi-Fi signal.