Schlage locks going offline/online

Nothing to do with the driver. SmartThings has tweaked the firmware for managing device offline detection. The FE599 is very susceptible to packet loss/delayed and if a single packet is lost (or delayed) it can lead to the hub thinking the device is offline. You should report it to SmartThings support to investigate it. They had recently reverted these changes to make the offline detection less aggressive but it’s possible they have re introduced those changes. @nayelyz @alissa.dornbos

Meanwhile your best defence is a strong mesh with minimal delays and packet loss. What that means is remove any dead devices and do a mesh repair and also add a few high quality buffering devices in your mesh