@Alexmesh I got a lot of information. I am 100 percent sure that the problem is in different channels of work. TP link wrote that they will fix it.

@Alexmesh is your country of purchase different from the country where you use it? the system is good, but it seems to me the problem is in the channels at 5 GHz

@David-TP The problem only manifests itself on telephones and also on laptops purchased officially in Indonesia. Phones and laptops purchased in other countries work well and correctly.

@David-TP here is a photo of the device

@David-TP iOS 17.2 (21C62) I have this system on my iPhone 15 pro m. I did what you wrote and it didn't help. It still does not connect in 5 GHz priority. I am in Indonesia. And on the device box the...

Iphones 15pro and 15 promax connect to a mixed network, but are always at 2.4 ghz. If I give them a priority of 5 ghz, then they lose the network and no longer connect. Until I make a 2.5+5 ghz...