I had two V14 systems setup as warm spare and they stopped working so I upgraded each to V15. I followed the warm spare setup but the last step doesn’t seem to be working. If I select connect to warm spare over SSH then all the api info disappears and the backup is just sent to the secondary server but it isn’t restored.
The only issue I see there being the api info generated on the warm spare uses the WAN IP of the system and I substituted the LAN IP which I wouldn’t think would matter. When I try to access the api on the secondary server - http://10.1.1.39/admin/api/api/
Oh my setup the warm spare is listening on port 2001. Your screenshots don’t include the URL and you are not explicitly mentioning it in your post but maybe append the correct listening port to the IP address?