Hi,
Removing the string “&_down_from_now=yes” and it works
Example:
http://localhost/checkmk_dev/check_mk/view.py?_username=automation
_secret=mysecret
_transid=-1
_do_confirm=yes
_do_actions=yes
view_name=hoststatus
host=host
_down_custom=Custom+time+range
_down_from_date=2020-03-31
_down_from_time=12:30
_down_to_date=2020-03-31
_down_to_time=14:30
_down_comment=test_downtime
I close this topic.
Thx to all.
Dario.