Unable to connect to WiFi

I’m having a really strange issue with my Fios connection and could really use some help.

My TV keeps showing this “Access denied, in accordance with Verizon Information Security Policy” message whenever I try to access this page while connected to my home Fios Wi-Fi. The error gives a Case ID and says to contact Verizon if there is a legitimate business need to access the content.

I’ve already tried restarting the TV, clearing the cache, rebooting my Wi-Fi/router, and completely factory-resetting the TV, but the issue continues.

What’s especially strange is that the TV works normally when I connect it to a different Wi-Fi network or my phone’s hotspot. The error only appears when I connect the TV to my home Fios Wi-Fi.

So at this point, it seems like something about my Fios network/IP/DNS/security filtering is triggering the Verizon security policy rather than the TV itself.

Has anyone else experienced this, or does anyone know what Verizon needs to check/reset on their end? I’d really appreciate any help because I’ve already completely reset the TV and the problem is still there