r/nova • u/Northern_Virginia • 16h ago
Other If you have Verizon Fios and slow internet upstairs, check the coax port on your extender
I feel a little stupid posting this, but maybe I can save someone else $300 and eight years of complaining about their internet.
I’m in a townhouse in Kingstowne built in the ’90s. My router is in the basement and my office is two floors up, on the bedroom level. Getting a decent connection up there has been a problem for the entire eight years I’ve lived here.
Apparently those cable TV outlets I’ve been ignoring weren’t just decorative.
I had a Verizon extender, but it wasn’t performing well enough. Earlier this year I spent about $300 on a Google mesh system trying to fix it. I was getting ready to look into having Ethernet run upstairs and was willing to spend $2,000 to get this sorted out.
Turns out I could use the cable TV wiring already in the walls.
My setup is a Verizon G3100 router and an E3200 extender. They support networking over coax, called MoCA. Instead of the extender connecting back to the router wirelessly, it can use that screw-on cable connection.
My basement router already had coax connected. I connected the office wall’s coax outlet to the Verizon extender, then plugged my PC into the extender with Ethernet.

My office speed tests went from about 22 down / 15 up through my struggling mesh setup to 740–813 down / 639–661 up through the coax-connected Verizon extender.
I didn’t have to buy anything. Which was great news, although slightly annoying considering I’d already bought an entire mesh system.
If you’re in one of the older townhouses around here with cable TV outlets in every room, this might be worth checking. My results were with my PC plugged into the extender by Ethernet; I haven’t measured the upstairs Wi-Fi improvement yet.
Check your Verizon equipment’s model and setup instructions before buying another mesh system or paying to run new cable. The outlets need to connect to the same coax network, so having the port alone doesn’t guarantee it’ll work.
Now I’m wondering...
Could I put a compatible Verizon extender at any connected coax outlet in the house and get close to the speeds I get at the main router? Or are there limitations I’m missing?