First and foremost, you'll need to use 1.1.1.3 and 1.0.0.3 as the DNS servers, as those are set up in Cloudflare to block malware/adult content. 1.1.1.1 will not block anything. Secondly, DNS is...

My EAP670's were upgraded last week to v1.0.6 through the Omada controller. Haven't had any issues (so far).

@MateuszMa - what is the signal strength/RSSI from the Wifi client you've been testing from? I have not personally observed channel width changing on any of the frequency bands once I have set them...

Also, make sure you enable OFDMA on BOTH 2.4/5Ghz radio bands for each EAP you have, if the option is available. OFDMA is proprietary to the qualcomm chipset and should improve performance.

Can an engineer or developer from TP-L chime in here and give out some high-level details as to what sort of load balancing algorithm is used by this managed switch since LACP isn't supported? It...

Your wifi settings in Omada are fairly similar to my own. Just make sure you're not using Airtime Fairness, as well as options that support "legacy" devices as that will slow down overall throughput...