@Walt_White After few days of testing, iPhones are still goofing around and cannot connect to WiFi. Also, after turning off the 6 Ghz network, one of the APs is losing signal. This is a total mess...

@MR.S Thank you a lot. I tried the DNS as well.

yes, the MikroTik LHG LTE18 kit LHGGM&EG18-EA is basically a router which Idk but I'm using to have an internet form LTE network. It's plugged in to OEM power adapter and then patchcord from that...

@MR.S ok, thank you for time. I also wonder, since MikroTik LTE 18 kit is powered by PoE, can I plug this in to switch so I can skip the oem powet adapter, and then ER707-M2 I could plug in to port...

@MR.S I'll let this lie for a few hours and observe. Protocol 802.11r is still disabled anyway.

@MR.S Seems like protocol 802.11r is disabled (shadowed) since 6GHz is on and WPA3 required by itself. If I turn off 6 GHz Idk why, but one of AP, between EAP650 outdoor and EAP225 outdoor losses...