How can I keep my doorbell online

I’m sure it is a battery saving feature but the doorbell goes offline (as reported by my router’s status page) shortly after leaving live view mode. Then when I attempt to return to live view I get ‘activating device’ (in other words - WAKE UP!). Then my router’s status changes to online.

I’m willing to incur a battery hit. How can I keep my doorbell from going to sleep ?

I’ll bet this ‘feature’ is why motion videos often are delayed until someone is right on top of the doorbell. It could also explain why some delivery visits are missed etc.