Was sitting with my 512 OLED steam deck and it has been fine when it suddenly disconnected from the WiFi and wouldn’t let me connect again. It happened a few days again but I just restarted and that fixed it but now nothing is working even going to developer mode and choosing the WiFi power thing. I even did a factory reset but still did not fix it. Also when I try to connect to my wi-fi in desktop mode it says “no secrets were provided”
have you tried resetting your router? sometimes that can help with connection issues like this. also, make sure your WiFi password is correct and try connecting to a different network to see if the issue persists.