Solid yellow light on Airport extreme

My I turner was working just fine last night, this morning, however, that is not the case. The modem is working. The AirPort Extreme has a solid yellow light and the airport utility program says "no configured base stations have been found." So far, I have held the reset button while it was plugged in AND while it was unplugged then plugged back in. From the research I have found, the solid yellow light not responding to a reset means my router is pretty much dead. I'm really hoping that is not the case and that someone knows of something else that can be done! Please help!