80% of my devices have stopped responding

[JDRoberts]

What messages do you get from the zwave repair?

You probably already know how to check the logs, but just in case:

FAQ: Logs and SmartThings - An intro into figuring out what went wrong

Logs and SmartThings: https://graph.api.smartthings.com: This is the first place to go when SmartThings are not acting right. This is also the developer site, even if you’re not geek this is an excellent resource to check logs and forcibly delete smart apps and devices. Live Logging: https://graph.api.smartthings.com > Live Logging This is where real time logs can be found. If you are having problems paring new devices or debugging code, this is a great place to start. Hub logs: https://graph.api.smartthings.com > My Hubs > List Events > From Hub Great place to see hub connectivity all PING’s (I’m Alive) and hub disconnect/reconnect messages can easily be seen here. These entries are historical up to 7 days Device logs: https://graph.api.smartthings.com > My Devices > (Choose a de…