5 Replies Latest reply: Jan 12, 2011 3:04 PM by Bob Timmons
Mick Level 1 (105 points)
My home network includes 3 Airport Expresses (2 G protocol & one N). Recently I decided to add an AirPort Extreme to the network. I decided to reset all the AirPort Expresses. The AirPort Express N protocol reset and join the network provided by the AirPort Extreme without any issue. Unfortunately after resetting the 2 AirPort Express G protocol, I recieve the following message:

"Airport Utility was unable to find your AirPort wireless device after restarting... The settings for this Airport Device have been successfully updated, but there was a problem re-joining the wireless network or finding the AirPort wireless device. You may need to select your network from the AirPort menu and try again."

When I restart AirPort Utility, the AirPort does not show up in the left hand column and the status light is blinking yellow.

Any help in resolving this matter would be helpful.



20" iMac 2.66 GHz Intel Core 2 Duo + 20" Cinema Display, Mac OS X (10.6.6), iPhone 3Gs 32GB; A/X x3; A/E
  • Bob Timmons Level 10 (98,124 points)
    Welcome to the discussions, Mick!

    When the AirPort Express is having difficulties joining a wireless network, the problems can almost always be narrowed down to two possibilities:

    1) Non compatible Radio Mode

    2) Non compatible Security settings

    Please perform a quick test by temporarily powering down the AirPort Express (n) and then also turn off the security on the AirPort Extreme.

    You can do this by opening AirPort Utility - Manual Setup
    Click the Wireless tab below the row of icons
    Locate the setting for Security and jot that down, then set it to None
    Update to save settings

    See if one of your AirPort Express(g) devices can be configured to join the network using no security. If the Express joins successfully, you know two things:

    1) The Radio Mode is compatible since the Express would not join otherwise

    2) You have a Security setting issue on your network

    If the AirPort Express will not join the network with no security, this tells you that:

    The Radio Mode setting that you have on the AirPort Extreme is not compatible with the capabilities of the Express (g)

    Turn the Security on the AirPort Extreme back to the setting that you had before the "test".

    Please post back with your results.
  • Mick Level 1 (105 points)

    Thanks for your help.

    It appears it was a security issue as both AirPort Express (g)s were able to join the network once I discontinued any security settings. Once I restarted the security settings they again seemed to disappear from the AirPort Utility.


  • Bob Timmons Level 10 (98,124 points)
    What type of Security setting are you using on the AirPort Extreme?

    If you are using WPA2 Personal now, you may need to switch to WPA/WPA2 Personal and then use the same setting on the AirPort Express devices.

    Try holding down the option key on your Mac while you click on the Security setting drop down box to display all of the choices here.
  • Mick Level 1 (105 points)

    Problem solved.

    Manually changed all my WPA/WPA2 Personal beginning with the A/X and finishing with the A/E.

    Thanks again.

  • Bob Timmons Level 10 (98,124 points)
    Glad you got things going.