Closed Network for 5 GHz only?

Hi guys,
Just installed a brand new 5th gen AEBS,
My plan is to use 5GHz band for my Mac Pro which is in the same room as the AEBS and 2.4 for iOS devices and an older iMac.
When configuring I toggled Closed Network which is located under the 5 GHz network name in Airport Utility.
My question is: seeing that the 5 and 2.4 GHz networks now have different names, are both "closed" or is it only the 5 GHz network?
Yes I know a Closed network offers no additional security give the right tools
Thanks in advance.

Both 2.4 GHz and 5 GHz bands will be "closed" if this option is enabled.

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I need to close an office network that I converted to wireless using apple airport's extreme base station and One relay express and a remote express. I already have it setup sucessfully broadcasting the SSID, but the owner doesnt want anybody seeing it, as we are in an office bldg. Any Suggestions? I dont want to start over unless I have to.
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There is little advantage, and many disadvantages, of setting up a "closed" network. The two biggest disadvantages are setup administration and "false" security. The AirPort, like most wireless routers, still broadcast their SSIDs to include data used for network data synchronization. Therefore, even "closed" networks can be easily found by "sniffers." Closing a network only keeps the casual users away.
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The reason I ask is because it is possible one of my neighbours is sabotaging my network and making it "invisible" there might a less likely chance for him to find my network (as long as he's not that savvy). What's been happening is I discovered today that the reason Time Capsule backups were happening so slowly is because my network conflicts with his--but only recently. I was on radio signal 1 and so was he/she. So I switched it to radio signal 11. Less than 2 hours later, his/her network radio signal is also on 11. So I have my suspicions...

Yes, my network is closed now. Security has always been enabled at WPA2 but enabling security does nothing to remedy malicious radio interference (if that is what my neighbour is doing). The reason I want to set it to "close" (invisible) is so that if the neighbour is not savvy enough, s/he will think my network is gone and no longer try to use the same channel I am.
Yesterday, I realised the reason my Time Capsule backups were going so slowly is because my neighbour was using the same radio frequency as I was (Channel 1). His/her network has existed for a while now and we never clashed before. So I thought it must have been just conincidence. So then I switched over to Channel 11. Well, two hours later, his/her network was also on Channel 11 making my network go from speeds of 54 to 11. So, I thought this is possibly him/her playing around and interfering with my network so I decided to go "invisible."
You are right that someone who is a bit more knowledgeable can figure out what the invisible networks are. It's not that hard. Even I can use iStumbler to see them. But, may s/he is not that savvy--I'm hoping.
Enabling security does nothing for radio interference. I've always had WPA2 security on.

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Hi there. Simply set my AE to a closed network, but didn't get a chance to set name and password before AE shut down. Now I can't gain green light by unplugging and replugging, soft, hard or factory reset. Ugh! I can't locate AE on Airport Utility 1)b/c not up and running and 2) b/c is now set as closed network.
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Sure... first I tried just unplugging but it plugged back in as amber light. Then I tried the reset button for 5 seconds. Then I tried for 10 seconds. Then I unplugged and plugged back in while holding reset button. I did this as outlined in the link above for resetting AE. With Admin utilities open the the settings named. The only time I can get a green light is the first moment it hits the socket, but it immediately goes solid amber. If I press and hold for 10 seconds I get 3 or 4 flashing green lights but it immediately goes amber (in this case, flashing amber)after the 3rd or 4th flashing green light.
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I have an Airport Express setup to create a network. On the same "wireless" tab in the AirPort Utility, when you click on the "Wireless Network Options" there is a check mark in the box for "Create Closed Network". However, the network is still visible. Why? Thanks for the help!
Message was edited by: rminot

+Bob, the option specifically says: "The name of a "closed" network is hidden. To join the network, a user must know the name of the network."+
It says this on your "main" AirPort Express setup in AirPort Utility. But there is no option for this if you are using an AirPort Express to extend using wireless only.
You posted that you were using a second AirPort Express to extend your wireless network.
Click on your "remote" AirPort Express in AirPort Utility
Click Manual Setup
Click the Wireless tab
Do you see any option that would tell the "extending" AirPort Express to hide your network? I can't find it.
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If I make it public from the Base station, the Mini can connect with no problem, even though iStumbler reports only 47% signal and 19% noise.
However, if I close the network again, the Mini can no longer see it. If I open Networks in the system utilities and go to Advanced, then the network is still configured. But even if I try to create a new connection and enter the name and access code again, the Mini still won't connect.
I have reset the PRAM and repaired permissions, but I am still not able to connect to my network.
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That did the trick. My Mini can now connect to the closed wireless network.
However, now it cannot see the Time Capsule disk and the AirPort utility cannot find any wireless AirPort devices, even though it is connected to the very same Time Capsule via the closed network.
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Connecting to Closed Networks

I have an airport express that I use for wireless access in my dorm. So, it's acting as a traditional router rather than a range extender. I have it set up as a closed network so that it's only visible to those who know the network name. I also have WPA2 enabled for security.
My problem is that, rather sporadically, I will wake my MBP from sleep and a dialog appears stating that "No known networks are available" and gives a list of available open networks. So, I choose "other" and input the network name and the password, making certain that "remember this network" is checked before connecting. Even after doing this multiple times, I still get the dialog periodically (about every other day or so) and I haven't been able to figure out why.
I left the network open for about a week and didn't encounter this issue, so it seems to be associated with the fact that it is a closed network. It wouldn't be a huge deal to have the network visible to anyone who browses for a network since it is encrypted, but I would rather have it closed in a building with a lot of people.
Does anyone have any ideas for a solution?

Yeah, the debate goes on and on, but if you were running aircrack-ng or kisMac and you saw my non-broadcast SSID pop up because I was actively affiliated to my network, wouldn't that pique your interest more in my network than in Alex's whose WPA2-AES-secured SSID you saw every day?
Meanwhile, I don't really know of any fix to Alex's complaint, in order to avoid the hoops that he has to jump through in order to reaffiliate after waking from sleep -- I can't say that I can recall ever seeing anything posted in these forums that adequately addressed the issue. Nobody's piped in on this thread yet with a suggestion to fix this behavior. I'd love to hear of one that is a dependable long-term fix. I'd go non-broadcast then myself.
I used to not broadcast a long time ago when I first went wireless, but I got tired of dealing with this very issue all the time myself, so when I weighed the annoyance of the reaffiliation process after waking from sleep versus the increased likelihood of my WPA2-AES-PSK with truly random passcode getting cracked because I broadcast my SSID, I chose convenience over annoyance. I don't believe that my security has been compromised in any way by my choice.
Alex is apparently annoyed as well, so that's why I recommended he go ahead and broadcast SSID so as to not be annoyed by this behavior anymore. WPA2-AES with a random passcode is as secure as he's gonna get wirelessly, broadcast SSID or not. He needs to weigh the choice of putting up with the annoyance factor or not...until somebody posts a sure-fire cure.

Closed Network for 5 GHz only?

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