hi

for that

connect to your ubnt device via ssh (using software like putty

login with web GUI username

insert this codes:

set system task-scheduler task daily-reboot interval 1d
set system task-scheduler task daily-reboot executable /sbin/reboot

.and Done

 

this command reset device every day at 00:00

 

ref:

https://community.ubnt.com/t5/EdgeMAX/How-can-I-schedule-a-reboot/td-p/429633

https://community.ubnt.com/t5/EdgeMAX/ER-8-locking-up/m-p/1174715/highlight/false#M56291

https://community.ubnt.com/t5/EdgeMAX-Feature-Requests/Schedule-automatic-shutdown-or-restart/idi-p/588567/page/2#comments

https://community.ubnt.com/t5/EdgeMAX/Scheduled-Reboot-every-Sunday-morning/td-p/1637078