Hello, 

I have a really bad experience with some android devices.First, I thought it was coming from the devices, but now it's the third one (xiaomi 11t) having issues. 

Laptops, Google home, printers and older android phones are working fine though. 

But with the 11t for instance, it will connect to another deco while I'm standing one meter from the master one (even after disabling / enabling WiFi), and losing connection / trying to reconnect all the time (and having poor bandwidth). Making WiFi unusable. 

I have 4 M4 installed AP behind an archer c7. 

When using native WiFi from router, or another WiFi I have no issues so it's really a deco / (some newer) android problem it seems. 

I found (closed) threads but no real solution provided unfortunately. 

What can I do? 

I don't want to replace my 4 M4... 

Thanks