Internet is going down frequenty for a few seconds, a minute, or even longer. Up and down all day. I have confirmed it is not the ISP. I have disconnect all extenders so only using the router's wifi.

I have an AC1750 that I purchased because I have heard rave reviews about TP-Link products and I needed to know that I could rely on my router now that I am working from home. I should have stuck with

The product ID I have was not available, I have an AX5400 (Archer AX73). I do not have home internet, I only have my cellphone internet and what to use my cell phone internet as the internet source. I

I purchased this router for my aunt who recently moved close to me. She has Spectrum internet and I was able to set up the router to get her access. However, she constantly experiences connectivity is

No internet on any of my devices after resetting router several times with no luck. Purchased 4/2021

Internet speed is about 230 mbs. Best I can get out of the router is 40-50 mbs, in the same room. Any ideas whereto start looking?