What does the LEDs of the Mesh units mean?

What does the LEDs of the Mesh units mean?

There is only one LED on the front of your Mesh 2100.

LED while configuring

If the main mesh unit LED is red it means that the device is still configuring. Please wait a few minutes and the LED will be blue which means that the device is configured.

LED of the secondary Mesh during pairing

If the secondary mesh unit LED is red it means that it is not paired to the primary unit. In this case, please wait a few minutes after pressing the WPS buttons of the devices for them to pair.

LED when finished

When the devices are pairing the LED bliks in blue. Once the pairing process is finished the LED turns blue.