@Joseph-TP More testing done using Windows laptops and Android devices. The same issue occurs. But when we turn off location services, all bands show up.

@Joseph-TP Hi again, Joseph. I can now confirm this is a limitation from TP-Link based on location. I disabled location services for networking on the two iPhones we were testing with, and both the 5...

@Joseph-TP Hi Joseph. The router version is v1. The firmware version is 1.2.1 Build 20250813 rel.27119. Yes, it was purchased locally. As a matter of fact, when I encountered this issue, I bought...

@Joseph-TP Hi again, Joseph. When can I get feedback on this issue? I can guarantee that the issue is not with the devices that are connecting to the router, but the router itself. It's not...

@woozle I tried every single channel.

@Joseph-TP The devices I use to connect to other APs and routers that operate on 5GHz and 6GHz include iPhone 15 Pro Max, iPhone 16 Pro and MacBook Pro 14 M4. The 2.4GHz works fine. The 5 and 6 GHz...