I have had a solid Zwave & zigbee network for 3+ years running on a 2gen hub. Yesterday, while trying to repair a Schlage lock which was showing online but constantly giving me an network error (a network or server error occurred. Try again later.) Later in the day i noticed some basic automations were not running, and when i looked in the IDE, nearly all the ZWave devices local & cloud based were showing offline (a couple zigbee devices as well.) These were mainly switches so not battery related. Even the switches that are showing online, are not responding to controls from the APP giving me the network error.
I have rebooted the hub, power cycled it, performed ZWave Repair which completes without error. Any thoughts appreciated on what to do next