Firewall Rules / Gateway Settings blocking Ring

I’ve had a Ring Video Doorbell Pro 2 and a Ring Floodlight Cam Plus for about two years running through a Deco XE75 mesh router connected to Spectrum Gigabit.

2 weeks ago I decided to test Verizon 5G home internet with a WNC-CR200a gateway. I configured the gateway as pass-through and connected my Deco mesh router to it.

Everything continued to work great except my Ring Floodlight Cam Plus (the Ring doorbell worked fine). In fact, my Blink outdoor cameras also stopped communicating to their SyncModule.

I got to Ring Level 2 support and after extensive troubleshooting determined my signal was fine, Ring device was not defective, Bluetooth, etc. not involves - and the Ring theorized the issue is caused by a firewall settings somewhere that are blocking ports Ring uses.

When I switch from my Verizon gateway back to my Spectrum gateway, everything works including the Ring flood cam. Then I switch to Verizon and Ring flood cam stops connecting again (Blink too).

I’m not a network guy but I found a few advanced settings in my Verizon gateway that I changed - but problem remained.

  1. Disabled IPv6 Support
  2. Changed Security settings to “Low” which unblocks all incoming and outgoing traffic.

None of that worked but I’m convinced there’s a setting that fixes this right up.

I found protocols and ports used by Ring devices but I just simply don’t understand how to configure the gateway well enough to ensure these ports and protocols are unblocked.

My gateway user manual is

Anybody have any ideas? I’m dreading the call to Level 1 support at Verizon because they won’t know what I’m talking about. I barely do!