For IR600 and IR900.

Restore to factory default via front panel RESET button:

Step 1. Locate the RESET button on the device;

Step 2. Turn on the device’s power; within 10 seconds, press and hold RESET button;

Step 3. When ERR LED is on, release the RESET button;

Step 4. Within a few seconds, ERR LED should go off; then press and hold the RESET button again;

Step 5. When the ERR LED is on, release the RESET button, and that means Router is now restoring to factory default settings;