Problem:

The sensor is stuck showing “door open for a long time” in the Tapo app, even though the door has been opened and closed multiple times.

Current behavior:

• The LED on the sensor is constantly ON (solid green)
• It does not blink when opening or closing the door
• Previously, it used to blink once on every open/close, and blink during pairing mode

What I’ve already tried:

• Replaced the battery (CR2032)
• Reset the device multiple times
• Re-paired with the hub
• Checked alignment with the magnet

Observation:

Even when I bring the magnet very close to the sensor, there is no LED response.