System information

Mac mini (Mid 2011) Symptom Charts — Communications 42
2011-07-21
Communications
Wi-Fi/Bluetooth Issues
Quick Check
Symptoms Quick Check
Wi-Fi/Bluetooth Issues
• Wi-Fi or Bluetooth cannot be
enabled.
• AirPort or Bluetooth interfaces
not available in the Network
and USB info of System
Information
• Unable to join networks or pair
devices
• Intermittent device or
connection dropouts
• Limited wireless range
1. Verify that Wi-Fi or Bluetooth is turned ON ,
2. (Wi-Fi) Make sure that a network is available and
selected.
3. (Wi-Fi) Verify in System Information that installed
AirPort card supports the channel number
currently used by the wireless access point.
4. (Wi-Fi) Check if the wireless access point requires
special connection and encryption protocols.
5. (Wi-Fi) Check the number of users trying to use
Wi-Fi in the area for possible network congestion
(available bandwidth).
6. (Bluetooth) If customer complaints about a
Bluetooth issue with his input device, rst use a
known-good Bluetooth input device to perform
tests with computer. Then test customer’s
Bluetooth device on known-good computer to
dene which side is creating the communication
issue.
7. (Bluetooth) Make sure that customer is not using
too many Bluetooth devices, and that disabling
one of them does not solve the issue.
8. Check for nearby sources of interference such as
microwave ovens or cordless phones. See Apple
Technical article <http://support.apple.com/kb/
HT1365>
Isolate potential OS related issues by starting up
from known-good original system media or an
up-to-date, bootable OS X volume like:
-a same Mac mini model setup in Target Disk
Mode,
-a compatible known-good up-to date Mac OS X
installed on an external drive,
-by pressing the Cmd-R keyboard keys while
restarting, to access the Mac OS X Utilities
available from Recovery HD.
Note: The computer may need to be connected
to a network with Internet access.