I recently purchased the SONOFF MINI Dry Zigbee Dry Contact Smart Switch (MINI-ZBD) and tested its functions together with the SONOFF Zigbee Bridge Ultra.
Everything worked normally, including manual control, Schedule, Countdown, and Loop Timer.
I then wanted to test what would happen if the Bridge Ultra became unavailable at the moment a scheduled task was supposed to be executed. To do this, I intentionally restarted the Bridge Ultra shortly before the scheduled task execution time.
Since the Bridge Ultra requires approximately one to two minutes to restart and reconnect to the Zigbee network, I expected that the scheduled task would not be executed.
However, after the Bridge Ultra came back online, the Schedule and Countdown functions stopped working not only on the MINI-ZBD, but also on all other Zigbee devices connected to the Bridge Ultra.
Manual control continued to work normally.
The Loop Timer function also continued to work normally.
Wi-Fi devices continued to work normally.
After that, I tried several times to solve the problem by restarting the Bridge Ultra, but this did not help.
The problem disappeared only after completely disconnecting the Bridge Ultra from the power supply for several minutes and then reconnecting it.
I would like to know whether this is expected behavior or a firmware bug.
Hello, we sincerely apologize for any inconvenience this may have caused you. Thank you for your feedback. To help our technical team investigate the issue more accurately, could you please provide the following information:
Gateway Device ID: Your ZBBridge-U device ID (can be found on the device details page in the eWeLink App).
The specific time when the issue occurred during your testing.
Additionally, please submit the logs via the eWeLink App: go to “Me” → “Feedback”, select the corresponding ZBBridge-U device, and make sure to check the “Upload logs” option. After submission, please let us know your ticket number.
Once we receive the information, we will analyze it and get back to you as soon as possible. Thank you for your cooperation!
I am writing this because I could enter only a very limited amount of information in the eWeLink feedback form due to the 300-character limit.
The gateway is SONOFF Zigbee Bridge Ultra (ZBBridge-U).
Gateway Device ID: 100236ed4d
Firmware version: 2.2.0
The issue was first noticed while testing a SONOFF MINI Dry Zigbee Dry Contact Smart Switch (MINI-ZBD).
Everything was working correctly. Manual control, Schedule, Countdown and Loop Timer were all functioning normally.
I intentionally restarted the Bridge Ultra shortly before a scheduled action because I wanted to test what would happen if the gateway became unavailable at the moment when the command should be executed.
The bridge required approximately one to two minutes to restart and reconnect to the Zigbee network. I expected the scheduled action to fail because the gateway was unavailable.
However, after the Bridge Ultra reconnected, the problem became much larger.
The Schedule and Countdown functions stopped working not only on the MINI-ZBD, but on all Zigbee devices connected to the Bridge Ultra.
At the same time:
manual control continued to work normally;
Loop Timer continued to work normally;
WiFi devices continued to work normally.
I restarted the Bridge Ultra several times, but the problem remained.
The problem was resolved only after disconnecting the Bridge Ultra from the power supply for several minutes and then reconnecting it.
This makes me think that some internal Schedule or Countdown service inside the Bridge Ultra may have stopped working correctly after the gateway became unavailable during the scheduled execution period.
I have already uploaded the application logs through the eWeLink application.
Hello, we have located your ticket, but we did not receive any logs on our backend. Could you please submit them again, making sure to select the corresponding ZBBridge-U device and also check the “Upload logs” option? This will allow us to successfully receive the log files for analysis. Thank you for your cooperation!
