@JamesHowlett I may have solved the issues with my router. Last time i indicated that I had placed a fan on it. That fan was a small desktop fan. i use it to cool down (myself) when the house starts...

@KJILM123 I too have a TP-Link Archer AX11000 purchased from Costco. It's been installed for about a little over a month. Worked flawlessly with the network reaching all corners of my home including...