Ok, what I was suggesting is some troubleshooting steps to help pin down where your problem lies. I'll just bow out now and hope the tech resolves your issue(s) and your frustration.
I moved the router to my bedroom where my PC is. I connected the router to my "TV" coax cable and then I connected the router to a LAN port on my computer via a CAT 5 cable.
I just ran a speed test with the Verizon Broadband Test Web Site. My download speed is now 58 MBS. WOW!! Fantastic.
Thanks for all your sugestions and help. Where should I send the flowers???
CQ DX! I also have an Amateur Extra ticket although it's been years since I've been active on the air.
Anyway, please report back what results you get at www.speedtest.net once you've made the changes discussed here. Assuming you get the results you're hoping for, knowing that may help other reading this thread in the future. And if for some reason moving your router and changing from wifi to hard wired doesn't do the trick, well, let's not go there unless necessary.
Typical speedtest here with 75/35 plan: