Originally Posted by
Joshu42 Nice ! So the disconnection was requested by your phone (reason 3 = DEAUTH_LEAVING)... I don't think it's the WPA. Ha, seems to be the DHCP lease. In the first log, you used ipv4, but here, I see an ipv6 address. Can you configure your router to use only ipv4 addressing ? And/Or in the Wi-Fi settings on your phone (Settings > Networks and Connections > Wi-Fi), switch off the "Enable IPV6" option ? Then, test also with Wi-Fi "N" disabled in the router settings.
That said, your wi-fi signal is really bad (< -70 dBm !). You have to do something about it. The request from your phone can also just be about the signal strength. Can't you move the router nearer ? Can you plug an antenna ?