Apple Technician Guide MacBook Pro (17-inch, Early 2009) - tim.id.au

2010-06-11
Wireless Performance Issue /
Slow Connection
• Slow or stalled data transfers
• Intermittent connection
dropouts
Deep Dive
1. Check for nearby interference sources in the
2.4/5GHz range such as microwave ovens or
cordless phones (Knowledge Base HT1365)
2. (AirPort) Check the number of users trying to
use AirPort in the area for possible network
congestion. Move closer to base station to
improve signal reception.
3. (Bluetooth) Move devices closer together.
4. Check performance with a known-good system
5. (AirPort) Wireless base station checks:
a. Base station is not set to low-power
transmission mode.
b. Base station is not set to a slower protocol
mode (802.11b).
c. Check for possible Wi-Fi channel overlap
(nearby base stations using adjacent channel).
6. Isolate OS by booting from original install
media (10.5.x). Attempt to connect to base
station (AirPort) or pair with wireless keyboard
(Bluetooth)
7. Use Software Update to make sure all AirPort and
Bluetooth software and firmware updates have
been applied.
Check Result Action Code
1. Inspect the display clutch
barrel for damage. AirPort
radio is in display clutch barrel
area.
2. Turn off Bluetooth. Retest
AirPort performance.
Refer to Knowledge Base
TS1809.
Yes Record damage: Proceed
to possibly repair damaged
parts, go to step 2
No No visible damage, go to step
2
Yes Possible AirPort interference
from the Bluetooth card.
Change AirPort base station
channel. (Knowledge Base
TS1809.)
No Continue by checking
connections, go to step 3
N06
MacBook Pro (17-inch, Early 2009) Symptom Charts — Communications 65