@VGGDP Thanks for your answer. I spent a few hours on it today, and I kinda sorta found a fix. Not the most satisfying one, but it more or less works. Instead of naming the SSID for the extender...

@VGGDP Hello, Have you found a fix? I have exactly the same problem. I've just set up a RE450 extender (my router is a TP-Link Archer AX10). It's working fine with all my Android devices, but I get...