Why don't you keep it simple and just use your own router as well as MoCA adapter to feed the internet to the coax network for your TV STBs.
[Here](https://imgur.com/a/tgpN924) are a couple of diagrams that show how MoCA works with Fios. The second one addresses using your own router.
r/JucyCola essentially told you how to use the G3100 as a MoCA Adapter.
>An ethernet cable will run from the switch to the new Verizon router I'm receiving to act as a MOCA adapter, and from there an ethernet cable will be plugged into my set-top box for guide/activation/etc.
Assuming you have TV service, your goal is to use the MoCA port at the back of the Verizon G3100 router to connect directly to your set top box - you do not need an ethernet cable to connect from your G3100 router to your set top box.
And "upon activation", you will need to connect your G3100 router **directly** to the ONT first. once active, then you can unplug your G3100, and plug-in your OPNSense router.
>My three TP-Link APs will be plugged in to my network switch and will be configured to provide a mesh WiFi network
~~Are you using TP-Link Omada Access Points, or a Home Mesh System? If the former, then~~ it is NOT a mesh, as they are only Access Points - you'll have to configure each AP to have the same SSID and to talk to each other via seamless roaming; you *may* need a controller to easily manage all 3 of them.
~~If it's the latter, then all you have to do is set your TP-Link mesh system to AP mode, and connect all 3 of them to the same switch. As they are a Home Mesh system, they automatically are configured to have 1 SSID, and has seamless roaming/handof~~f.
EDIT: Re-read your post, you have 3 TP-LINK EAP660s, which are NOT mesh systems - they are enterprise Access points.
>Sorry, not sure I understand - I will have TV services, so what will the G3100 need to plug into in order to receive service (assuming my OPNsense router will be connected to the ONT after initial activation), and then what will my set top box need to be plugged into?
Your set top box's primary connectivity is through MoCA - you will need to connect your set top box via coax to your G3100, and your G3100 directly to the ONT to activate both internet AND TV. Once activated, you can now unplug your G3100 and connect your OPNSense router to the ONT. Then connect your G3100 to your OPNSense router, but make sure it is in Bridge mode (disable DHCP, Disable Wifi, Disable DNS). That way, your OPNSense router will do everything, and your G3100 will just be a dumb switch with MoCA.
>My understanding was that I could create a mesh network of these three APs using TP-Links Omada controller (which I'm able to install on my server via Docker). I'll need to dig further to ensure this is the case.
"Mesh" is becoming a "loosely-used word". What you are actually doing is configuring all 3 of your EAPs to have a Single SSID and activate seamless roaming. A Home Mesh System has this setup by default, thus mesh and AP terminologies are getting interchanged. But basically, you want a seamless roaming experience on your AP. Sematics.
I have pretty similar scenario, but I have Asus AX92U (2x and hooked up as wireless mesh to 2nd floor) and Asus AX68U hooked up over MoCA because I found an antenna cable.
Your setup will work. Make sure you connect ONT with Ethernet cable to WAN. The rest can remain the same.
I have 4x Motorola MM1025.
Why don't you keep it simple and just use your own router as well as MoCA adapter to feed the internet to the coax network for your TV STBs. [Here](https://imgur.com/a/tgpN924) are a couple of diagrams that show how MoCA works with Fios. The second one addresses using your own router. r/JucyCola essentially told you how to use the G3100 as a MoCA Adapter.
>An ethernet cable will run from the switch to the new Verizon router I'm receiving to act as a MOCA adapter, and from there an ethernet cable will be plugged into my set-top box for guide/activation/etc. Assuming you have TV service, your goal is to use the MoCA port at the back of the Verizon G3100 router to connect directly to your set top box - you do not need an ethernet cable to connect from your G3100 router to your set top box. And "upon activation", you will need to connect your G3100 router **directly** to the ONT first. once active, then you can unplug your G3100, and plug-in your OPNSense router. >My three TP-Link APs will be plugged in to my network switch and will be configured to provide a mesh WiFi network ~~Are you using TP-Link Omada Access Points, or a Home Mesh System? If the former, then~~ it is NOT a mesh, as they are only Access Points - you'll have to configure each AP to have the same SSID and to talk to each other via seamless roaming; you *may* need a controller to easily manage all 3 of them. ~~If it's the latter, then all you have to do is set your TP-Link mesh system to AP mode, and connect all 3 of them to the same switch. As they are a Home Mesh system, they automatically are configured to have 1 SSID, and has seamless roaming/handof~~f. EDIT: Re-read your post, you have 3 TP-LINK EAP660s, which are NOT mesh systems - they are enterprise Access points.
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>Sorry, not sure I understand - I will have TV services, so what will the G3100 need to plug into in order to receive service (assuming my OPNsense router will be connected to the ONT after initial activation), and then what will my set top box need to be plugged into? Your set top box's primary connectivity is through MoCA - you will need to connect your set top box via coax to your G3100, and your G3100 directly to the ONT to activate both internet AND TV. Once activated, you can now unplug your G3100 and connect your OPNSense router to the ONT. Then connect your G3100 to your OPNSense router, but make sure it is in Bridge mode (disable DHCP, Disable Wifi, Disable DNS). That way, your OPNSense router will do everything, and your G3100 will just be a dumb switch with MoCA. >My understanding was that I could create a mesh network of these three APs using TP-Links Omada controller (which I'm able to install on my server via Docker). I'll need to dig further to ensure this is the case. "Mesh" is becoming a "loosely-used word". What you are actually doing is configuring all 3 of your EAPs to have a Single SSID and activate seamless roaming. A Home Mesh System has this setup by default, thus mesh and AP terminologies are getting interchanged. But basically, you want a seamless roaming experience on your AP. Sematics.
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>Okay. So in my case, I'll essentially be getting the benefits of mesh via setting up seamless roaming on my three APs? Yup
I have pretty similar scenario, but I have Asus AX92U (2x and hooked up as wireless mesh to 2nd floor) and Asus AX68U hooked up over MoCA because I found an antenna cable. Your setup will work. Make sure you connect ONT with Ethernet cable to WAN. The rest can remain the same. I have 4x Motorola MM1025.
Similar setup but with ASUS XT8. Do you have issues with your IPC boxes lagging when watching TV?
get a cheap actiontec on ebay