I’m trying to watch an Apple HomeKit remote camera.I can watch this on my phone (4G/5G) no problem.  

I can also watch this no problem when connecting my laptop to my phone’s hotspot.  It also works fine when connected to my local network via Ethernet.  

But connecting to the AP912c I just get a spinning symbol and the video never loads.I can watch Homekit recorded video clips okay, but realtime video just won’t work via the WiFi connection. This is on the 5Ghz band.  

There’s no contenders for bandwidth and it’s not a noisy environment.

Any suggestions as to how to tweak AP912c settings to get this to work?

PS - Changing settings for access mode doesn't make a difference to this, so I've set this back to mixed