Basically, this issue rarely happens, but when it happens, you can factory reset and reconfigure your device, then set the schedule again for troubleshooting. Meanwhile, please make sure your device time zone set on Meross app is correct.
You can troubleshoot the following:
·If you paired the device with Home app,please add it again by Meross app.
·Check whether your home Wi-Fi is connected to the internet or not.
·Make sure the password of your home Wi-Fi hasn't been changed.
·Make sure your device is covered by your home Wi-Fi.Moving it closer to Wi-Fi router or install a Wi-Fi range extender would help.
·If all else fails,please factory reset your device and try to add it again.