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Troubleshooting and Resolving MAC OSX Wireless Connectivity



Troubleshooting and resolving wireless connectivity on MAC OSX computers.To start, and to provide a little information if you are entering a workorder - Hold the "option" key and click on your wireless indicator at the top of your screen - you will see a bit of information under the ssid you are connected to; such as BSSID:, CHANNEL: , RSSI:, etc.  This could be useful information to relay to our helpdesk.Mac OSX 10.5, 10.6, 10.7General troubleshooting steps:---  Under the Apple Menu, click on Software Update.  This will search for updated drivers and software from Apple Open System Preferences => Network1. Select Airport from the list on the left, then click the Advanced button in the lower right corner2. Under the airport tab, delete slu-wifi3. Under the 802.1x tab delete any entries relating to slu-secure (OSX 10.5 and 10.6 Only)4. Click the OK button in the lower right corner, then click the Apply button in the lower right corner5. Open Keychain Access (Finder => Go => Utilities)6. Select login from the list on the left, click on "All Items" in the list on the left7. Delete any keychain entries that have slu-wifi in the name.8. Delete any keychain entries that have "VeriSign Class 3 WLAN Secure Server CA" and/or "" in the name9. Restart10. Connect to slu-wifi, make sure that works11. From the airport menu select slu-wifi, enter username and password. It's recommended that you UNCHECK "remember this network" Also try deleting the airport plist file -- for OS 10.7 -- ( DO NOT TRY THIS WITHOUT THE HELP OF PROFESSIONAL STAFF)



1/ disable airport

2/ delete the plist file

3/ enable airport and select your favorite network again

 Other tips:slu-wifi sometimes breaks because Mac OS X remembers the settings incorrectly, or remembers the customer's OLD password. If you don't let Mac OS X save the settings for slu-wifi, then it won't break in the future. Turn off BluetoothOddly, some users have reported that simply turning off Bluetooth resolves this issue. To do so, Simply access the Bluetooth menubar item and select “Turn Bluetooth Off” or open System Preferences from the Apple menu, click Bluetooth, and uncheck the box “On.”Link to a very good list of troubleshooting steps from ARUBA ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Resetting MAC OSX Leopard Wireless MACs had the title for being the easiest to join wireless networks: just click on wireless network and it will automatically tell you need to join it; no problems. Unfortunately there are a number of situations where MACs will get into a state where wireless networks that it has been connecting to for the longest, it will NO Longer connect to reliably. The only thing to do is to entirely reset your wireless. When you have tried everything in MAC Client "Nuances" ( and it is only that client with problems, this is the procedure for you: Network preferences are stored in the 'System' file space (/Library) and the 'User' file space (~/Library) in the following files: System files (network and wireless): /Library/Preferences/SystemConfiguration/ System Files (General configurations) /Library/Preferences/SystemConfiguration/preferences.plist 802.1x Profiles: ~/Library/Preferences/  To reset default network settings, remove (or make copy and remove) ALL of the above files. You need to be in UNIX mode to do that: Launch 'Terminal': Finder -> Applications -> Utilities -> Terminal From the UNIX Shell, create a directory to store old preferences:  Code:cd ~mkdir saved-preferencesThen, move all network preferences files to this backup folder:  Code:mv ~/Library/Preferences/ ~/saved-preferencescd /Library/Preferences/SystemConfiguration  sudo mv * ~/saved-preferencesThe "sudo" command WILL ask you for the root password to proceed. Reboot Computer to get back in business! ++++++++++++++++++++++++++++++++++++++++++++++++ Resetting MAC OSX Lion Wireless:How to completely reset your Network Preferences : Turn Airport off. Close System Preferences. Navigate to : /Library/Preferences/SystemConfiguration/ Make a copy, then delete the following files* +++++++++++++++++++++++++++++++++++++++++++++++++ Apple’s built-in airport program,   /System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/airport Supported arguments: -z        --disassociate       Disassociate from any network -i[] --ibss=[]       Create IBSS -x        --xml                Print info as XML -s[] --scan=[]       Perform a wireless broadcast scan.  Will perform a directed scan if the optional is provided -r   --repeats=      Repeat the command the specified number of times -A[] --associate=[]  Associate to network.  Will prompt for network name if arg is not specified and if necessary, for a password if the network is using WEP or WPA.The following additional arguments may be specified with this command:    --bssid=     Specify BSSID to associate with    --password=  Specify a WEP key or WPA password -I        --getinfo            Print current wireless status, e.g. signal info, BSSID, port type etc. -P   --psk=          Create PSK from specified pass phrase and SSID.  The following additional arguments must be specified with this command:           --ssid=      Specify SSID when creating a PSK -c[] --channel=[]    Set arbitrary channel on the card -h        --help               Show this helpAlthough there are many options, the two I find most useful are -I (to display information on the current AirPort connection) and -s (to scan for wireless networks).