ERR/NET LED flashes once every 5 sec — Improper server communication

What does LED once every 5 sec mean?

The ERR or NET LED flashes once, then pauses for 5 seconds, repeating the pattern. This means the Wi-Fi interface is connected to the server but not communicating properly or consistently.

• Intermittent network issues or unstable internet connection
• Temporary glitch in server communication
• Firewall or router settings interfering with data transmission

Click steps to track your progress.

1. 1

   Push the RESET Button on the Wi-Fi interface for 2 seconds to restart server communication.

2. 2

   Check your internet connection for stability and speed, try restarting your Router.

3. 3

   If the problem persists, review your Router's firewall settings for any restrictions.

4. 4

   Consult your local Mitsubishi Electric office if the issue continues after these steps.