After booting Mac OS X and/or after resuming from Sleep mode your wireless network connection does not connect automatically to your base station.
Your network is listed as a preferred network and is set to connect automatically.
- Wireless network remains disconnected even though all required configuration is correct
- Automatic connection to preferred wireless network does not occur after resuming from sleep mode
- Automatic connection to preferred wireless network does not occur after restarting or clean booting your Mac
- Clicking the Wireless icon in the Finder Menu and selecting your wireless network manually will allow you to connect successfully
This problem can occur when the System Preferences application is moved out of the Applications folder. Console/Event Viewer:
- airportdError: _ACKeychainCopyPassword() expected password for “networkname” not found: -25300 (The specified item could not be found in the keychain.)
- airportdExpected password for “networkname” not found; skipping..
Solution – Fix the Keychain
Step 1 – Delete the offending wireless network from network preferences
- Click the wireless network icon in your menu and select your network
- When prompted, enter the password for the network and place a check mark in ‘Remember this network’.
- Click OK
- Restart your computer to verify that this solution worked
Step 2 – Delete any references to the offending network connection from keychain
- Applications > Utilities > Keychain Access
- Select ‘login’ from the list of Keychains on the left
- On the right panel, sort the list by name and locate the name of the offending wireless network.
- Highlight all items relating to the offending wireless network, right click (CTRL+CLICK) and select ‘Delete X items’
- Click ‘Delete’ in the confirmation dialog prompt and close Keychain Access.
Step 3 – Move ‘System Preferences.app’ to ‘/Applications’
- Locate System Preferences on your system. You can do this by browsing to it through Finder or using Spotlight.
- When you locate it, simply drag it to the Applications folder in the sidebar of your Finder
Step 4 – Re-join the offending network
- Applications > System Preferences > Network > Unlock
- Select your network from the list on the left (Airport if your using an Apple Airport Extreme card)
- Click ‘Advanced…’
- Select the offending wireless network from the list of ‘Preferred Networks’ and click the minus (-) button
- Click OK, enter your password if requested and then click Apply