Netflix 11800 error only on Apple TVs
Right now with my Apple TV 4K I can barely watch Netflix without it throwing error 11800. That error points to some network or DNS issue. Netflix on the my Nvidia Shield works without issues. On the Apple TV the error sometimes pops up instantly sometimes within 30 min.
We use Philo, Disney Plus, Hulu, Discovery Plus, Plex and various streaming music platforms daily without any issues. The issue is with Netflix and only when using an Apple TV.
My setup: Unifi Dream Machine Pro 1.9.3 I do have IPS on but i'm not seeing anything blocked. 2 different Apple TV 4K (TvOS 14.5) wired ethernet. Speed tests at 930 with the Speedtest.net app. ISP Spectrum 940 down 40 up
What I have done: Multiple Apple TV restarts, Reinstalling Netflix, Factory reset Apple TV Pulled power from the Apple TV, Manually tried Google, Quad9 and Cloudflare DNS on the Apple TVs, and even tried the new ATV 2021 same issue.
I don’t want the answer to be to drop the Apple TVs as we are an Apple house and we like them except for this issue.
What else can I try?