Long delay in finding wireless after sleep...
Often up to two minutes. I am running a late 2008 MacBook and have an Airport Express. Other devices (old PowerBook and iPhone) find network immediately. The system log is giving the following error.
7/11/09 12:15:07 PM airportd[6686] Error: Apple80211Scan() failed: Resource busy (16)
7/11/09 12:15:07 PM airportd[6686] No networks found on channels remembered for B's Network
7/11/09 12:15:07 PM airportd[6686] Could not find "B's Network"
7/11/09 12:15:07 PM airportd[6686] Error: Apple80211Scan() error 16
7/11/09 12:15:35 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:36 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:36 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:37 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:37 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:38 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:38 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:39 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:39 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:40 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:40 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:41 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:41 PM SystemUIServer[3794] Error: __performScan() failed (16)
7/11/09 12:15:48 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:48 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:49 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
This continues for at least another two minutes or so, until resolving with:
7/11/09 12:17:24 PM com.apple.launchd[1] (com.apple.backupd-wake[6690]) Exited with exit code: 1
7/11/09 12:17:24 PM com.apple.launchd[1] (com.apple.backupd-wake[6690]) Exited with exit code: 1
7/11/09 12:18:13 PM ntpd[14] time reset -0.184324 s
7/11/09 12:18:13 PM ntpd[14] time reset -0.184324 s
7/11/09 12:15:07 PM airportd[6686] Error: Apple80211Scan() failed: Resource busy (16)
7/11/09 12:15:07 PM airportd[6686] No networks found on channels remembered for B's Network
7/11/09 12:15:07 PM airportd[6686] Could not find "B's Network"
7/11/09 12:15:07 PM airportd[6686] Error: Apple80211Scan() error 16
7/11/09 12:15:35 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:36 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:36 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:37 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:37 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:38 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:38 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:39 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:39 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:40 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:40 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:41 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:41 PM SystemUIServer[3794] Error: __performScan() failed (16)
7/11/09 12:15:48 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
7/11/09 12:15:48 PM SystemUIServer[3794] Error: __performScan() EBUSY, try again in a sec
7/11/09 12:15:49 PM SystemUIServer[3794] Error: Apple80211Scan() error 16
This continues for at least another two minutes or so, until resolving with:
7/11/09 12:17:24 PM com.apple.launchd[1] (com.apple.backupd-wake[6690]) Exited with exit code: 1
7/11/09 12:17:24 PM com.apple.launchd[1] (com.apple.backupd-wake[6690]) Exited with exit code: 1
7/11/09 12:18:13 PM ntpd[14] time reset -0.184324 s
7/11/09 12:18:13 PM ntpd[14] time reset -0.184324 s
MacBook, Mac OS X (10.5.7)