Connection Blocked on Some Devices

[rbreezee]

I have been using the Verizon 5G home internet for about 6 months without any issues. I use the Verizon supplied router for some devices, but have a TPLink router for the main floor. In addition to this, I have a wireless bridge (using Engenius Enstation AC) to a detached shop. Then I use another TPLink router in the shop.

Everything seemed to work fine until 3-4 weeks ago when several devices could no longer connect to the internet. They would connect to the network, but would have no internet access. The devices that could not connect were security cameras, the TPLink router in the shop (and of course anything that was connected to that router), and a Roku. The wireless bridge started working again after a factory reset, but only for about a week. 

I've tried adjusting the firewall settings and made sure that none of these devices were showing as blocked in the device menu. 

Any help would be greatly appreciated. I suspect this may have been due to a firmware update that was recently pushed to the router?

[Cang_Household]

Could you draw a brief diagram on the setup?

It sounds like a pure network problem rather than an equipment problem.

My gut is telling me this is either an IP conflict, or a Broadcast storm.

[rbreezee]

Sure thing! See below. It's also worth noting that some (very few) websites work on the blocked/disconnected devices. Like I can use Google to search and even watch videos. But as soon as I click on a website it says the page cannot be displayed. I can also get to the Verizon router settings by inputting the IP address.

(Also note that I have tried a network switch, a splitter, and using both ports out of the VZW router. All with the same result)

[rbreezee]

I tried rearranging my routers and everything seems to work per the diagram below. The only issue is that this requires me to place the  TPLink router next to the Verizon router and the wifi won't cover the house. I can figure out a solution for that though. Thank you!

[Cang_Household]

Could you photo the backside of all TP-Link routers and the VZ router? I need to see which port you are using. Please cover up any identifiable information and passwords and whatnot.