need some help

both of my MACs 2018 (OS:12.3.1) and 2021-M1 (OS:12.1) constant reboot if they do not have a network connection

I found this when the switch was down. The Macs stay up for about 50 secs, then they restart

Reconnecting the MACs solves it.

I did a virus check with https://www.malwarebytes.com/mac-download that is what Apple uses when you contact them.
=== nothing found

any suggestions?

Karl

here the logfile part before the reboot

Code: Select all

Apr 15 19:28:53 Mac-mini Installer Progress[120]: Releasing the boot windows
Apr 15 19:28:53 Mac-mini Installer Progress[120]: Progress Updated: currentPhase = "loginwindow Boot", phase progress = 55.000, total progress = 68.623
Apr 15 19:28:54 Mac-mini Installer Progress[120]: Progress Updated: currentPhase = "loginwindow Boot", phase progress = 80.000, total progress = 86.055
Apr 15 19:29:00 Mac-mini loginwindow[173]: client 0x600003aeb8c0: phaseName = "loginwindow Boot" is done
Apr 15 19:29:00 Mac-mini loginwindow[173]: ISAP: Done with Phase "loginwindow Boot"
Apr 15 19:29:00 Mac-mini Installer Progress[120]: Progress Updated: currentPhase = "loginwindow Boot", phase progress = 100.000, total progress = 100.000
Apr 15 19:29:00 Mac-mini Installer Progress[120]: Done with phase = "loginwindow Boot"
Apr 15 19:29:00 Mac-mini Installer Progress[120]: Progress Updated: currentPhase = "loginwindow Boot", phase progress = 100.000, total progress = 100.000
Apr 15 19:29:01 Mac-mini Installer Progress[120]: Calling completion handler for phase "loginwindow Boot"
Apr 15 19:29:01 Mac-mini loginwindow[173]: client 0x600003aeb8c0: phaseName = "loginwindow Boot", hide progress UI called
Apr 15 19:29:01 Mac-mini loginwindow[173]: client 0x600003aeb8c0: phaseName = "loginwindow Boot" is being released
Apr 15 19:29:01 Mac-mini Installer Progress[120]: Saving completion handler for phase loginwindow Boot
           "Phase Name" = "loginwindow Boot";
Apr 15 19:29:01 Mac-mini Installer Progress[120]: Unregister process 173, phaseName loginwindow Boot, uuid 0B0EDBF8-D13E-4657-A8B8-E8CB25DB1C98
Apr 15 19:30:09 Mac-mini reboot[1305]: SHUTDOWN_TIME: 1650043809 802759
Apr 15 19:30:42 localhost bootlog[0]: BOOT_TIME 1650043842 555236
Apr 15 19:30:54 Mac-mini Installer Progress[120]: 1 Boot windows acquired
Ap

That looks like an installer that requires a reboot is failing.

some more info:

1. MAC connected to switch & switch not connected to internet ==> reboot
2. MAC logout, not connected ==> no reboot

so: reboot if logged in and no connection to internet

So how do I find the app / process that does that?

.. and I have a script that is named "reboot if no network" and it works