1672 Views 2 Replies Latest reply: Jan 7, 2011 10:03 AM by Psilocybe
Try the following on your MacBook to see if it helps.
o Open System Preferences (gear icon) on the dock
o Open Network
o Click on AirPort on the left
o Click on Advanced at the lower right
o Locate the name of your network on the connection list, click it to highlight it and then click the - (minus) button at the bottom of the list to delete it
o Do the same for any other old networks or networks you see that you do not use
o Click OK at the lower right, click Apply at the lower right
o Open Applications > Utilities > KeyChain Access
o Locate the listing with the name of your wireless network
o Delete that listing. You can right-click on the listing and select delete to do this
o Restart your Mac Pro.
You have now deleted the record of your old network (which may have had some corrupted settings). Locate your Mac Pro near the AirPort Express so that it will receive a strong signal and try to log on to your network again.