I don't see anything unusual in your settings, however I have recently had an issue myself which may be similar or may not.
I have a Ring Doorbell Pro in my home. These do seem to be quite fussy regarding wifi signal and other factors but I hit a real problem that the Live View function where you view the live video feed from either laptop or mobile phone would say it had connected but usually just stuck with a black screen, or occasionally connected with view poor quality. I did lots of troubleshooting but to keep the story short I discovered the following:
- With cakeqos active my Ring Live View problem was there
- If I stopped cakeqos Ring Live View worked fine
- If I restarted cakeqos with bandwidth limits set to unlimited Ring Live View was fine
I haven't finished diagnosing my problem, but have been running a few days using FlexQoS (ie Asus Adaptive QoS) and so far I still don't see the issue. Once I have proven I can go a week without issues, I will swap back to cakeqos and test further.
I would be interested to know if setting both bandwidth values as 0 improve your problem - I know it will increase bufferbloat, but it would be interesting to hear your result as a diagnosis aid.
EDIT: I should add that Ring Live View gets its live feed via the internet so the traffic is leaving my network in the hop from doorbell to Ring cloud services, then straight back into my network again to the device running the Ring client.