To @aaiyar ‘s point. The Peanut plugs are great Zigbee repeaters but won’t help if you have a zwave version of the lock.
Here’s what I did 2 months ago to finally resolve the issue in my home. This costs about the same as 2 Aeotec repeaters and I am pleased with the result. Zero drops and much improved battery life.
Adding Aeotec Range Extenders has made my BE469 and FE599 locks reliable
