Thank you for the detailed report and sorry about the failed watering.
This should be fixed in the very latest driver version 2026-07-31T10:56. The version dated July 30 contained a problem that could prevent the normal Open command from being sent when the SONOFF-specific settings could not be verified.
The logs would be extremely important, particularly if the problem still occurs with the latest version. Without them, anything I say about the cause would essentially be guesswork.
To collect the logs:
- Enable Debug logging in the device settings.
- Install the official SmartThings CLI on a computer connected to the same local network as the hub.
- Find the hub’s local IP address in your router.
- Open a terminal or command prompt and run:
smartthings edge:drivers:logcat --hub-address=<HUB_IP_ADDRESS>
For example:
smartthings edge:drivers:logcat --hub-address=192.168.1.50
- Select the SONOFF Hydro driver when prompted.
- Leave the command running and reproduce the problem in the SmartThings app: try opening the valve and wait for the Network Error.
- Copy the complete output from shortly before the command until about 30 seconds after the error and paste them here and share the resulting link here in this thread.
The logging is live, so it must already be running before you reproduce the problem. Please do not extract only the lines that look like errors—the surrounding Zigbee messages are often what reveal the actual cause.
It would be particularly useful to capture one attempt with an SWV-ZNE on firmware 1.1.0 and, if possible, another with the SWV-ZFE still on firmware 1.0.8.
It has been a while since I have received logs, so this would be extremely helpful. Thanks!