A satellite device may appear in red text in the Network Map if it has lost connection with the GigaSpire. If a satellite is colored red, check the following items:
Is the satellite powered on?
For satellites with a wired connection to the GigaSpire, check the physical connections.
For satellites with a wireless connection to the GigaSpire, try rebooting by removing power, waiting 10 seconds, and restoring power.
If a power reset did not work, go through the pairing process again.