MacBook Air not reconnecting to wireless after long sleep.

Hello,
First off, apologies if this has been addressed in a previous post; went through a few pages and saw nothing that helped.
I have been having problems with my i5 Thunderbolt 11" MacBook Air - running Lion 10.7.3 - reconnecting to my home network, which is listed as a Prefered Network, after being in sleep mode; especially after a long sleep, say overnight.
I know it's not my network because my 2.8 Core 2 Duo 15" MBP - running 10.6.8 - never has a problems reconnecting.
I see other posts refering to a WiFi Update for other machines, but not the Air. And this was purchased with Lion, so while a re-install might solve the issue - again something I saw suggested - I would rather avoid the hassle.
I've checked with the "Apple people" at Best Buy - the closest thing I have to an Apple Store here in South Texas - and they say the recent update should have fixed the problem.
Thanks in advance for any thoughts/suggestions/advice are greatly appreciated!
- Rob

There are no solutions because for many it is still an unresolved problem. It is not a problem for most. I for one have three Macs, a MacBook Pro, a MacBook Air, and a MacMini. Only one of the three, the MacBook Pro, has the problem.
Also see these, all on Lion: https://discussions.apple.com/thread/3704573?tstart=30
and: https://discussions.apple.com/thread/3190651?tstart=60
and: https://discussions.apple.com/thread/3192395?tstart=90
and: https://discussions.apple.com/thread/3191630?tstart=150

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Report generated November 15, 2014 at 6:15:22 PM GMT+2
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MacBook Air (Verified)
MacBook Air - model: MacBookAir6,2
1 1.7 GHz Intel Core i7 CPU: 2-core
8 GB RAM Not upgradeable
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en0: 802.11 a/b/g/n/ac
Video Information: ℹ️
Intel HD Graphics 5000 -
Color LCD 1440 x 900
Thunderbolt Display 2560 x 1440
System Software: ℹ️
OS X 10.10 (14A389) - Uptime: 18 days 1:18:22
Disk Information: ℹ️
APPLE SSD SM0512F disk0 : (500.28 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk1) / [Startup]: 499.05 GB (24.75 GB free)
Core Storage: disk0s2 499.42 GB Online
USB Information: ℹ️
Apple Internal Memory Card Reader
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. iPhone
Apple Inc. Display Audio
Apple Inc. Apple Thunderbolt Display
Apple Inc. FaceTime HD Camera (Display)
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Apple Inc. thunderbolt_bus
Apple Inc. Thunderbolt Display
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/System/Library/Extensions
[not loaded] com.ZTE.driver.ZTEUSBCDCACMData (1.3.11) Support
[not loaded] com.ZTE.driver.ZTEUSBMassStorageFilter (1.3.11) Support
[not loaded] com.caiaq.driver.NIUSBMaschineControllerDriver (2.3.3) Support
[not loaded] com.driver.JRDMassStorageDriver64 (1.0.0) Support
[not loaded] com.driver.JRDMassStorageDriverType05 (1.0.0) Support
[not loaded] com.driver.JRDUSBModemData32 (1.0.1) Support
[not loaded] com.driver.JRDUSBModemData64 (4.0.8) Support
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MySQLCOM: Path: /Library/StartupItems/MySQLCOM
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[failed] com.apple.CallHistoryPluginHelper.plist
[failed] com.apple.CallHistorySyncHelper.plist
[failed] com.apple.coreservices.appleid.authentication.plist
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[failed] com.apple.ctkd.plist
[failed] com.apple.GSSCred.plist
[failed] com.apple.icloud.findmydeviced.plist
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[invalid?] cn.com.zte.usbswapper.plist Support
[not loaded] com.adobe.AAM.Updater-1.0.plist Support
[loaded] com.google.keystone.agent.plist Support
[not loaded] com.teamviewer.teamviewer.plist Support
[running] com.teamviewer.teamviewer_desktop.plist Support
Launch Daemons: ℹ️
[running] cn.com.zte.PPPMonitor.plist Support
[loaded] com.adobe.fpsaud.plist Support
[invalid?] com.adobe.SwitchBoard.plist Support
[loaded] com.google.keystone.daemon.plist Support
[running] com.makerbot.conveyor.plist Support
[loaded] com.microsoft.office.licensing.helper.plist Support
[running] com.prey.agent.plist Support
[loaded] com.rogueamoeba.instanton-agent.plist Support
[loaded] com.teamviewer.Helper.plist Support
[not loaded] com.teamviewer.teamviewer_service.plist Support
User Launch Agents: ℹ️
[failed] com.facebook.videochat.[redacted].plist Support
[loaded] com.nero.HSMMonitor.plist Support
[running] com.spotify.webhelper.plist Support
[running] homebrew.mxcl.mongodb.plist Support
[running] homebrew.mxcl.mysql.plist Support
User Login Items: ℹ️
Flux 2 Application (/Applications/Flux 2.app)
GrowlHelperApp Application (/Library/PreferencePanes/Growl.prefPane/Contents/Resources/GrowlHelperApp.app)
Alfred Application (/Applications/Alfred.app)
iTunesHelper ApplicationHidden (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
HipChat UNKNOWN (missing value)
Dropbox Application (/Applications/Dropbox.app)
BetterSnapTool Application (/Applications/BetterSnapTool.app)
Google Chrome ApplicationHidden (/Applications/Google Chrome.app)
Google Drive Application (/Applications/Google Drive.app)
Internet Plug-ins: ℹ️
AdobeAAMDetect: Version: AdobeAAMDetect 1.0.0.0 - SDK 10.6 Support
FlashPlayer-10.6: Version: 15.0.0.223 - SDK 10.6 Support
Default Browser: Version: 600 - SDK 10.10
Flash Player: Version: 15.0.0.223 - SDK 10.6 Support
QuickTime Plugin: Version: 7.7.3
o1dbrowserplugin: Version: 5.38.6.0 - SDK 10.8 Support
SharePointBrowserPlugin: Version: 14.1.0 Support
googletalkbrowserplugin: Version: 5.38.6.0 - SDK 10.8 Support
Unity Web Player: Version: UnityPlayer version 4.0.1f1 Support
JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
User Internet Plug-ins: ℹ️
WebEx64: Version: 1.0 - SDK 10.5 Support
Picasa: Version: 1.0 - SDK 10.4 Support
Dashlane: Version: Dashlane 1.0.0 - SDK 10.10 Support
3rd Party Preference Panes: ℹ️
Flash Player Support
FUSE for OS X (OSXFUSE) Support
Growl Support
MySQL Support
Native Instruments USB Audio Support
Time Machine: ℹ️
Skip System Files: NO
Mobile backups: OFF
Auto backup: NO - Auto backup turned off
Volumes being backed up:
Macintosh HD: Disk size: 499.05 GB Disk used: 474.29 GB
Destinations:
Macintosh HD [Local]
Total size: 499.76 GB
Total number of backups: 2
Oldest backup: 2013-07-29 01:42:19 +0000
Last backup: 2013-07-29 02:54:52 +0000
Size of backup disk: Too small
Backup size 499.76 GB < (Disk used 474.29 GB X 3)
Top Processes by CPU: ℹ️
      63% Dropbox
      15% WindowServer
      14% Airfoil
      12% Google Chrome
      6% com.apple.preference.security.remoteservice
Top Processes by Memory: ℹ️
187 MB Google Chrome
86 MB Google Chrome Helper EH
58 MB mds_stores
46 MB Dropbox
43 MB Airfoil
Virtual Memory Information: ℹ️
75 MB Free RAM
2.21 GB Active RAM
2.12 GB Inactive RAM
2.14 GB Wired RAM
384.98 GB Page-ins
19.83 GB Page-outs

19.83 GB Page-outs
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MacBook Air not reconnecting to wireless after long sleep.

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