A Power Mac G5 computer does not detect an AirPort network or Bluetooth device, even though the base station or device is well within range.
Solution
Make sure you have the appropriate external Bluetooth and/or AirPort antennas properly connected at the rear of the computer. The AirPort antenna is included with the Power Mac G5 and is compatible with the AirPort Extreme card. The Bluetooth antenna is only included if you purchased Bluetooth as a CTO option from Apple.
Third-party devices may include their own antennas.
Antenna description: