I have a simple Node-RED flow with 2 simple injections - 0 and 1 - to switch off and on my Shelly 1 Gen 4. It was working perfectly after creating this flow.
Next day, there was red marker with “An unknown error occurred” at the Shelly Node.
After several tests I found out, that it came from a network loss for 1 minute, because I restart my FritzBox once in the night. After this the error occurred.
Restarting Node-RED on the CerboGX doesn’t help. The only way to fix the failure is a reboot of the CerboGX device.
How its expected to work:
Automatic reconnect to Shelly devices after network loss
How it doesn’t work as expected:
“An unknown error occurred” at the Shelly Node in Node-RED after network loss
Details on the system:
venus-swu-large-einstein-20260407151932-v3.80~14.swu
Node-RED v4.1.6
Shelly devices activated in CerboGX
using Shelly 1 Gen 4
What you’ve already tried to make sure its not a setting or other issue:
Restarting Node-RED, not changes
Reboot of the CerboGX device, connection to Shelly 1 Gen 4 re-established and the flow is working again.
after network loss:
after reboot CerboGX:
