Seeking Advice on Home Offline Message

Hello everyone, I’ve been experiencing an issue where my home system occasionally shows an ‘offline’ message. This has been particularly concerning since I upgraded my thermostat recently. While the system was functioning smoothly before the upgrade, I’m now facing this recurring problem. I’ve tried troubleshooting by performing a zwave relearn process whenever I move any sensors around, but the issue persists. I’m hoping someone in the community might have encountered a similar situation and could offer some insights or solutions. Any advice would be greatly appreciated!