There is another more general thread with people with the same issue - it's not just me! No solution offered by TP-Link. Here

I bought my Mac and Deco both in Australia. The country code on the Mac as above, shows US. It lists many 6GHz channels: Also, my Samsung Galaxy Fold 5 (which also supports 6GHz) and was bought in...

@David-TP Backhaul over 6GHZ works fine. Why shouldn't the 6GHz network work? Does the router do this kind of detection and disable functionality? I'd expect the router to warn me if it is explicitly...

Here's the entirety of my Advanced menu.

@Rob0705 No such setting on my XE75, latest firmware. All I have is this, under Wifi settings. Can you post a screenshot? You have an XE75, right?

There is no option to turn off backhaul - it's either use "6GHZ for backhaul", or "Use 6GHz for Wifi Network and Backhaul". Those are the only options. Selecting the second option enable the network...