You may have a low power problem causing the radio to lock up. Other possible causes of WiFi dropping include entering power saving mode as well as the Pi filtering ARP requests.When i reboot my raspberry pi, the wifi will work for a little bit, but then it shuts off, The only way that I can fix it is by restarting NetworkManager or rebooting it again.
For a recent thread about ARP filtering, see
viewtopic.php?p=2235231#p2235231
Statistics: Posted by ejolson — Mon Mar 03, 2025 6:02 am