Ring Chimes won't stay connected

I have three ring chimes in my house. One is working fine, but the other two are causing problemsThe second ring chime went through it's setup just fine joined my network and worked for a couple of days now it says offline and nothing seems to bring it backThe third chime I installed upstairs gets to 95% during setup then hangs before timing outBefore anybody says check your Wifi, the house has a 4-node Deco mesh with excellent wifi strength throughout the house and the two chimes causing problems are both within 10 feet of a mesh node, so it's not a Wifi problem. Needless to say all the online troubleshooting guides are completely useless.