GL-MT3000 modem check

Since the 4.4.5 update the GL-MT3000 started running this script every minute in a cron job:

Wed Oct  4 14:05:00 2023 cron.err crond[4007]: USER root pid 21148 cmd . /lib/functions/modem.sh;check_ip
Wed Oct  4 14:05:00 2023 cron.err crond[4007]: USER root pid 21149 cmd sleep 30;. /lib/functions/modem.sh;check_ip

I’d like to be able to disable this check from the GUI.
This is excessive since I have no modem, and it just pollutes the system logs with these messages.

Same for GL-AX1800. Very annoying