Previously paired devices now not pairing

[RBoy (www.rboyapps.com - Making SmartThings Easy!)]

Oh yeah, also see this topic, it’s more rare these days but to cover your bases:

FAQ: My lock/device does not pair or appears to pair but it won't show up in the mobile app or IDE - stale DTH

While the topic title talks about locks, this issue affects any device which appears to pair but doesn’t complete pairing. If you’re having trouble pairing your device and you’re using custom DTH’s see this FAQ: Symptoms When you try to pair a device using the ST app or the Classic ST app it may appear to pair successfully, i.e.: the device will provide feedback that it has paired. e.g. Devices/locks flash green lights or other lights to indicate successful pairing Device may successful sounds/beeps But the ST mobile app won’t show any new devices, it’ll continue saying Looking for devices There are no new devices showing up in the IDE under My Devices You are able to successfully manually exclude the device using the General Exclusion process Cause This is caused by custom DTH’s …