Airport Utility/Airport Express

I have an old Airport Extreme and an old Airport Express with the Express connected via powerline and as an access point and using the same SSID as the end.

The system actually works very well, but my question relates to Airport utility, namely that the Express appears in THE time time, has a Mark Green beside him for awhile, then the exclamation mark in a yellow triangle telling me it "was" part of my network but it is is no longer accessible.

This depends on the sound being defined as an access point, or is it just a quirk that I should live with?  Have a system that works, but is not able to check by the utility Airport is a minor and of course much better than the reverse drawback but I'm curious to know why this is happening.  Thank you

AirPort Utility is based on both the mDNS (aka, Hello) and IPv6 IP protocols to find an AirPort base station. Don't forget that both of your AirPort base stations more iMac are configured for IPv6 link-local only.

  • For a Mac: System preferences > network > Wi - Fi or Ethernet > advanced > TCP/IP tab > configure IPv6: link-local only
  • For the AirPort Base Station:
    Note: You may temporarily connect your Mac or PC directly to the base by Ethernet station to access.
    • From a Mac: AirPort Utility > select the base station > change > Internet tab > Internet Options... > configure IPv6: link-local only
    • Since an iOS device: AirPort Utility > tap the base station > press Edit > tap Advanced > tap on IPv6 > change configure IPv6 to: link-local only > Tap actually

For mDNS, it is a matter of "all or nothing" since OS X Mavericks. Unfortunately, there is no real settings, you can change this.

Some references for more information:

Tags: Wireless

Similar Questions

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    I have an AirPort Express 802.11n (I just got 1st generation) who does not appear in Airport utility?

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  • Airport Express (1st generation) not connect to iPhone 6 iOS 10.0.2

    I am trying to connect and listen to music from my iPhone 6 iOS 10.0.2 through the music app. My phone does not see the Airport Express Terminal more. All I see is my Apple TV. I can connect to the Airport Express terminal when I use iTunes on my computer. My iPhone is used to connect to the Airport Express Terminal.

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    Hello...

    Try a reset > reset an airport base station FAQ - Apple Support

  • Configure Airport Express with D-Link router

    I am currently using a router D-Link with my MacBook. I want to use Airport Express plug my MacBook on my amplifier. When I tried to set up the Airport Express, Airport utility can't find it. I can't connect the Airport Express Terminal to the D-Link router by ethernet cable, because the amplifier that I connect it is too far from the telephone jack.

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  • My Airport Express will randomly start flashing orange and I have to unplug it to make it back to the green.  Wifi continues to operate even when the light is orange flashing.  Anyone know why this is happening?

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    The next time you see the flashing light amber...

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  • Reset to factory Airport Express?

    I have the Ethernet cable installed throughout the House in large part driven by current wireless issues. I have a new Airport Extreme 802.11ac and three airport expresses to 802.11n. Is it advisable to make me a reset factory at the Airport Express before their reconfiguration in a mobile network? Any other tips and tricks to look out for? I hope that this will lead to greater stability in the Apple TV streaming, but also performance of Airplay (i.e. dropouts) three airport expresses. Thank you!

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    Assuming you have tested to make sure that the Ethernet connections are working properly, the installation process is extremely simple and intuitive.

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