From: tnp@invalid.invalid   
      
   Yesterday I brought up a brand new Pi Zero 2 W and after a bit, it was   
   all hunky dory.   
   Sometime last might, it went offline. No route to host.   
   I rebooted it and it lasted half an hour. Then it wouldn't reboot at   
   all. Its now sitting next to the wifi router is configured for and is   
   for now accessible.   
   I have no HDMI adapter for it., Its headless and normally accessible via   
   ssh.   
      
   What I want to know is where in the logs to start looking for any issues?   
      
   The most interesting thing is that journalctl is full of unrelated   
   messages *all the time I could not access* the PI Zero 2W   
      
   Mostly related to   
      
   Sep 13 11:12:24 PiFi2 systemd[715]: rpi-connect-wayvnc.service:   
   Scheduled restart job, restart counter is at 1515.   
   Sep 13 11:12:24 PiFi2 systemd[715]: Stopped rpi-connect-wayvnc.service -   
   WayVNC process used by Raspberry Pi Connect.   
   Sep 13 11:12:24 PiFi2 systemd[715]: Starting rpi-connect-wayvnc.service   
   - WayVNC process used by Raspberry Pi Connect...   
   Sep 13 11:12:24 PiFi2 systemd[715]: rpi-connect-wayvnc.service: Control   
   process exited, code=exited, status=1/FAILURE   
   Sep 13 11:12:24 PiFi2 systemd[715]: rpi-connect-wayvnc.service: Failed   
   with result 'exit-code'.   
   Sep 13 11:12:24 PiFi2 systemd[715]: Failed to start   
   rpi-connect-wayvnc.service - WayVNC process used by Raspberry Pi Connect.   
      
   That bunch was followed by an ssh session closed message. I didnt close   
   the session.   
      
   [note: I have disabled VNC and wayland in raspi-config - how to remove   
   vnc entirely?]   
   [Ah. apt-remove rpi-connect seems to work okay ]   
      
   So it appears that the machine was up, but simply wasn't connected   
   TCP/IP/Wifi wise?   
      
   It did not respond even to pings. or presumably ARPS...   
      
   Ah. I found something.   
   Sep 13 09:42:54 PiFi2 NetworkManager[529]:   [1726216974.2842]   
   device (wlan0): Activation: (wifi) access point 'Larksrise' has   
   security, but secrets are required.   
   Sep 13 09:42:54 PiFi2 NetworkManager[529]:   [1726216974.2948]   
   device (wlan0): Activation: (wifi) connection 'Larksrise' has security,   
   and secrets exist.  No new secrets needed.   
   Sep 13 09:43:19 PiFi2 NetworkManager[529]:   [1726216999.7653]   
   device (wlan0): Activation: (wifi) association took too long   
      
   Now googling suggest that may be randomized MAC addresses on the wlan0   
   interface, or 802.11n enabled on the router. Neither is active as far as   
   I know.   
      
   *Well I have possibly fixed it.*   
      
   By explicitly creating   
   /etc/NetworkManager/conf.d/30-mac-randomization.conf as   
   [device-mac-randomization]   
   wifi.scan-rand-mac-address=no   
      
   So far it's stable after an hour or two   
      
   --   
      
   “The fundamental cause of the trouble in the modern world today is that   
   the stupid are cocksure while the intelligent are full of doubt."   
      
       - Bertrand Russell   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)