Command "wifi up" causes immediate router reboot


since OS 3.9.4 the use of /sbin/wifi up causes an immediate complete router reboot. I am disabling wifi over night by using a cron job, when the job reenables wifi in the morning, the router restarts.

The same happens if I issue “wifi down” (this works flawlessly) and afterwards “wifi up” via ssh. Because of the reboot, I can’t provide any logs to see what happens.

Wifi connections are working properly.

Thank you for your help!

Best regards,

Interestingly, the problem does not occur if I switch radio1 at first, i.e:

wifi down radio1
wifi down radio0

wifi up radio1
wifi up radio0

is working fine. If I instead reenable radio0 at first, the router crashes and restarts.