When you open the Airport Utility you’ll see the Airports that are part of your network. In that picture we see three devices– the devices on the network that our Mac is connected to. The one on the top, the Time Capsule, is blinking yellow. You can see, to the left of the unit’s name, an orange dot. We will focus on that unit, for now. The steps are exactly the same for any modern Apple Airport, whether an Airport Express, AirPort Extreme, or Time Capsule. You can resolve the apple router blinking yellow using the troubleshooting tips.