AP recommendation - replace AC68U in AP mode dropping "guest" network

[layw]

Currently running a Asus AC68U in AP mode (merlin latest) connected via ethernet to RPi 4 running openWRT. I did so as an experiment and to learn - been running this configuration for sometime but have started to have issues with the 68U dropping activity on one of the channels - specifically the guest channel (I realize that this is just a separate channel and not isolated)
Not sure if this is an issue with the router in AP mode, onset of hardware issues or firmware conflict (openwrt - Asus)

With the understanding its best to have proper hardware for the application I thought I'd look at a dedicated AP to replace the AC68U.
As i'm new to all this - what should I look for and any particular recommendations? my wifi needs revolve around wifi 5 & 6 devices - up to 10 devices (phones, laptops, ipad, firesticks, TV) - I do not have PoE but I could replace my current switch but this would be an added cost obviously. with the AC68U i get coverage (small home - 1000 sq ft) RPi is in the utility room with the the AC68U centrally located.

 

[Tech Junky]

I use a nwa210ax with a poe injector. On the lan I can hit 1.7gbps with the right parts and configuration. Just ordered Wi-Fi 7 to play with though. The ax though is fairly cheap at about $130.

 

[degrub]

i don't believe that Asus uses a separate radio for "guest" SSIDs. You should be seeing the same issue for devices on that radio (2.4 GHZ or 5GHz or both). If not, maybe an issue with the RF environment - interference, reduced signal, etc. or the client device. Many times the plug in power transformer wears out and starts to not supply correct amount of current. These can be replaced. Other times the radio starts to fail.

So use a POE++ injector or whatever is specified by the AP ( it does matter that you have enough power) . TPLink Omada are reasonable as well. CISCO 150AX APs are solid as well. A POE++ injector should be around 30-40 $. No need to replace your switch unless you just want to. IF you do, make sure the port power and the total available power exceed what is required by the AP.

 

[sfx2000]

Many times the plug in power transformer wears out and starts to not supply correct amount of current. These can be replaced. Other times the radio starts to fail.

That was my thought as well...

Considering the age of the AC68U, might consider replacement...