Can't Enable interference robustness

in Sytem Preferences-->Network-->Airport-->Options...
The "Enable interference robustness" check box is greyed out and can not be selected. Also, the option "Remember any network this computer has joined" is checked, but is also greyed out. I also do not have the option "Enable interference robustness" in the Airport status menu bar at all.
All the options are available and working on my wifes G4 ibook connected to the same base station.
The option "Enable interference robustness" is checked in the base station configuration portion of the Airport Admin Utility.
I've repaired permissions but the option is still greyed out.
Any ideas?
G4 MDD Mac OS X (10.4.8)

Try the following, in order, until resolved:
1. Create a New User Account
- Create a new user account.
-- System Preferences > Accounts
-- Click "+" to add a new account
- Log off, then log back on with the new user account.
- Try connecting with the AirPort.
2. Move System Configuration Files
(Note: You will have to reestablish your network connections settings.)
- Go to /Library/Preferences
- Move the SystemConfiguration folder and com.apple.networkConfig.plist file to the desktop.
- Restart your Mac. (Note: OS X will rebuild the files that are now sitting on your desktop. If this doesn't resolve the issue, you can move the folder & .plist file back to it's original location.)

Similar Messages

DROP OUT cure! Make sure "Enable Interference Robustness" is Checked!!!

I found the secret button - and now music plays like there's no tomorrow!
Like - I spent at least three weeks - three different routers trying to get my music to stream without drop-outs - to no avail. Then finally I FOUND THE TRICK. Like duh! Read on.
Here's my set up -
3 Airport Express Boxes fed to three separate amps and speakers around the house
1 Apple TV fed to the home theatre
4 Laptops connect wirelessly to the Netgear
1 NAS drive hardwired to the Netgear with all the iTunes Music on it
All connected to 1 Netgear MIMO-G Router via WPA Security
Man this was killing me - with all these variables I couldn't figure out why my music would play OK for a few minutes, then either drop out every minute or so for a few seconds - or just crash my router requiring me to kill its power for 2 seconds. This was killing me. I was about to give up on Apple and get a Roku.
But alas - here's the cure
THERE IS THIS LITTLE TINY CHECK BOX IN THE AIRPORT EXPRESS ADMIN UTILITY -
ON THE AIRPORT TAB - UNDER THE BOX THAT SAYS WIRELESS SECURITY THERE IS A TINY BOX THAT SAYS:
"Enable Interference Robustness"
Click that - and you are in like slim.
I found so many calls for help on this board for drop-outs that I had to just write this post. Good luck to all!
G

Ok, so all i got to say to this setup is wow you are a crazy man lol. First off storing your itunes library on a drive on the network is going to add more latency to your network as each time you try playing a song its having to go from your computer to the router, to the NAS drive, back to the router and then to the airport. However one thing i didnt see or maybe you may have tried i dont know is before using the enable interference robustness option did you try changing the wireless channel on the netgear router? Could just be something is interfering with the current wireless channel that its on. After tinkering with Interference Robustness myself ive found it to be like a Mass Blanket of wireless transmission. Think of you and another person being in a room with a crowd of people and your yelling back info back and forth. Sure you can hear and talk back to the person but your range to hear and speak is greatly reduced meaning if you wanna add any other wireless products that are outside that reduced range your kinda out of luck.

How can I mitigate interference?

I really want to use the wireless capability of my iMac, and now finally that the connectivity problems created by 10.4.8 are fixed I can concentrate on the real issues.
There are up to 9 networks in range of my iMac.
I've used iStumbler to look at these and amazingly, six broadcast on channel 11, one on channel 1, one on channel 3 and then there's me broadcasting on channel 6.
How do I mitigate / alleviate wireless interence?
Last night the performance was dreadful; I stuck an ethernet cable in the back from the router and then the iMac was flying along so obviously the deteoration in performance was due to interference. I had at this point, interference robustness turned on.
Is it just a fact that living in a high density area with a number of wireless networks I'm simply never going to get decent wireless performance, or are there other avenues I can explore to help me?
Any advice gratefully received

By the way, as I understand it, enabling interference
robustness helps against interference, but decreases
your range, so it might be necessary to relocate a
bit closer to the router, but only if you notice a
weakened signal.
Thank you for your reply my Highway, much appreciated.
I am pretty close to the router as it is, I moved it from a central location closer to my mac as I had that much trouble with wireless I needed to be able to plug in via ethernet when things got rocky.
I thought it was interference but I have a work Dell laptop running WXP SP2 and that connects and works brilliantly with my router for internet and is quite consistent and generally doesn't show performance issues; whereas the Mac has inconsistent performance and almost constant connection issues. I'm changing router (and ISP!) anyway and have posted a different question on that.
On a tangent my Highway, I notice that you use one of the 68 series HP wireless printers. I have some questions I'd to ask you specifically about the printer. Could you contact me privately by email if you don't mind me asking some questions about your setup??? I've changed my profile to reveal my email address. Thanks.
Luke

Mulitcast rate & interference robustness options?

Is there any downside to setting the multicast rate of my new Airport Extreme N to the highest option and enabling interference robustness?
I'm aware that the higher the multicast rate, the lower my range, but I'm usually in the same room as the router. Will this then improve my speeds when transferring large files to the usb-attached network drive or streaming music?

Good question. Tuff to answer. Robustness will slow you up. If you don't have interference why use it. The downloads speed I would think it would not make a difference unless others were using your network.

No 'Interference Robustness', HELP! ...?

Hello,
I've recently been given a MacBook Pro, with OS 10.6. It replaces my prehistoric-yet-lovable iBook G4, which was produced in 2003.
I notice that there is no "Use Interference Robustness" capability in the new OS. (This was in the drop-down menu under the internet 'fan') I could use the old disks that came with my old iBook, and go back to the old operating system on the new computer, but it seems silly to go back to an OS from 2003 just to get internet.
I have read a lot of forum posts, including the following:
http://discussions.apple.com/thread.jspa?threadID=1196815
I am currently working overseas. I've got 4 roommates, and when I try to change channels on the router it screws up their computers. I'll be traveling soon, and I can't lug around an airport to connect to every router I need to connect to. I'll continue to be in densely populated areas, where everyone has got a microave, cordless, router, etc. The new computer 'sees' at least 7 other routers in the apartments around me.
My new MacBook is NOT picking up a signal, not even when it is inches from the router. (To be specific the fan is full: it asks for a router password then briefly connects, then when you try to click on a webpage it simply takes forever to try and connect then eventually times out.) My iBook, using the old operating system, picks up the signal clearly from the other side of the house. (The old laptop has just been sold, so I will have to give it and its disks up soon!)
I know other forum contributors said that the old 'interference robustness' feature was only ever meant to be used with AirPort, but as many other Apple users have confirmed, my old computer never worked without IR, and I never had an AirPort at all.
The router is made by Pirelli (not kidding), but it hardly matters, seeing as I'll be on the go.
Is there any way I can change computer settings to fix my problem?
This oversight on Apple's part seems like the perfect opportunity for a desktop widget or other 3rd-party program, but none seems to exist.
I've been dreaming of a new laptop and OS for years, and while there are some cute features like Photobooth, at first glance 10.6 lags. There are some modifications that I would have expected to see in iTunes as well... but internet is like water or air if you've got to get work done!

I could use the old disks that came with my old iBook, and go back to the old operating system on the new computer…
Good luck with that thought. That's not doable. Your machine won't recognize anything that old. See Don't install old versions and Computer-specific builds for details.
As for the wifi issue, I can't help, since I don't use it, so you'll have to await those gurus to pop in.

Interference robustness in firmware 7.5.2

I upgraded airport extreme to firmware 7.5.2 and in Wireless Options I not find option Interference Robustness. Is in another place?

I'm having that exact problem again. I can't connect unless I am within 3 feet. That does NOT make sense. It has been a problem in 2007, and there is a thread about the upgrades that ruined it for too many then. I remember before 2007, my websites were coming fast and I was blazing thru the net. Since 2007, the wireless connectivity was so-so until the update last month. Then I noticed that my Interference Robustness option disappeared. Since then, I had to walk back up stairs to my room to get it reconnected, then walk back downstairs every other hour. Now I have to be within 3 feet, so that's it I checked discussions tonight and then immediately created a new account to post a reply.
http://discussions.apple.com/thread.jspa?threadID=831140&start=30&tstart=0

Connecting to wiresless network using Interference Robustness

Is it possible to create an Automator workflow that will automatically on startup or login select "Interference Robustness" then select a specific wireless network?
Thanks for any help or suggestions anyone can offer.

When I boot up the mac the wireless connection doesn't automatically start. I have to manually turn on "interference robustness" then select my desired wireless network.
Has anyone else experienced this issue and/or have a work around to solve this?

Where is "Use Interference Robustness"?

Hello,
i miss the function "Use Interference Robustness" in Mac OS X Leopard!
Without this i am losing constantly my Airport Connections.
Can anybody help?

Interference robustness has worked well for a number of people not using Apple Airport base stations (such as myself). As it turns out, I have an Airport Express that my iMac under Leopard will not recognize only 2 feet away. Naturally, under Tiger all is still well.
Moving interference robustness under the advanced settings is a real problem for people without Airport base stations as it is now impossible to get to the settings without recognizing a base station.
For example, I had turned on interference robustness during the two minute window that my Airport Express was recognized. Now, since Leopard is so spotty (sorry for the pun), I can't reliably test whether or not that setting helps at all. That said, I can report that my basic internet connection was practically nonexistent prior to implementing interference robustness on my iMac G4.
I'm surprised at Apple for this one - Leopard has been been through what seems like extensive testing, and this pops up! And no response from Apple ...
Steve

Use Interference Robustness?

I'm temporarily operating in a place with a LOT of visible wireless access points. Airport is neatly automatically selecting channels, and I'm not noticing any problems, but I'm wondering about the "Use Interference Robustness" check item in the pull-down under the network selection place on the main menu bar.
Can someone tell me what this does and how I might know if I need it? Any side effects? I've tried turning it on but I don't notice any change one way or the other.
Thanks for any help!

Link speed from Network Utility is 54MB either way, which is the best my MacBook and AP Express will do. Net Utility doesn't seem to have any real-time info on effective transfer speed. speakeasy.net/speedtest reported 800MB+ download, and 200MB+ upload, which I think is the most basic Cox Cable option in this area, and considerably less than the same hardware records at normal home base. Only a little use for peer-to-peer file sharing, so that's not a significant issue.
Thanks!

Use Interference Robustness option disabling on restarts

I don't know if this is a rare case, but I've been having a problem with the Interference Robustness option. I live in a under a lot of interference, so this option is vital for my internet connection to be as smooth as possible. Although, every time I restart my Mac, this option gets disabled. What can I do to alleviate the situation? Is this a OS X Tiger bug or something? It began to happen all the sudden after updating to the latest patch. Thank you.

Anyone? Please help.

All music gone, transferred to 'other', can't enable disk use on iTunes

it seems like there are a lot of people with similar problems but nothing exact..here goes:
-doing research on my macbook and i get a popup from itunes saying that my ipod was disconnected improperly (i didn't touch it and i wasn't even messing around on itunes)
-ipod restarts and reconnects with itunes and i get another pop up saying that "itunes cannot read the contents of the ipod. go to ipod summery and preferences and restore.
-i would just restore it and reload all the music butttttt like an idiot..i dont keep my music in my itunes cause it takes up way too much space and i never used any external hard drive or anything to back my music up (again..idiot..i know)
-so i read though a ton of forums and posts and see that im not the only one that this has happened to and everyone is saying to put it in disc mode, go to removable disk, copy all the music back to my macbook, restore my ipod, and put all the music back on. i also read something about clicking on my ipod icon on my desktop and going under ipod controls and changing some names (i dont konw if that was jsut for windows or what) but i also dont have an option of ipod controls
-the problem with that is that i can put my ipod into disk mode but that does me no good because i can't enable disk use on itunes because literally..my only option when i plug in my ipod is to restore it. under devices on the left hand menu, it just says ipod..not ipod with a bunch of sub categories like music and playlists and stuff..just ipod.
-normally..i would just give up and restore it but when i go to the about section on my actual ipod, it says that i have 50GB of "other" so that means that stuff is definitely still on it.
-so finally..my main question is:
is there ANY way to enable disk use on my iTunes without doing it through my iPod?..like i explained..when i plug my iPod in..that is not an option. and also..would i benefit from just bringing my laptop and ipod into an apple store and asking for help there or will that just be a waste of time?

The library on the iPod will have been damaged - hence the reason it appears empty, but the media files are still there taking up space and reported as "Other". Check out this post from Zevoneer for some iPod recovery options.
http://discussions.apple.com/thread.jspa?messageID=6273675&#6273675
Some of the tools mentioned will require a working library, but I know from experience that you can use the manual recovey method when the library is missing or damaged. If you're struggling for space you probably need to go & buy an external drive before you start. Stick the iPod in disk mode. Hold Menu+Select > 6 seconds (resets iPod) followed immediately by hold Previous & Select > 6 seconds. You can now drag the contents of iPod_Control\Music to your new hard drive. You may need to reveal hidden files & folders. Once they are on your hard drive you can create a new empty library on the drive, then import the files you have reovered and consolidate the imported library so that the files are in a standard artist\album\## track structure rather that the iPod's obscured names.
tt2

How can I enable embedded pl/sql gateway to run on port 80

I have a new 11G install on OEL 4.0, database created. I would like to be
able to access the instance using the pl/sql gateway. Works fine with
port 8080, the default. How to I enable it to run on port 80?
I found this statement in the following docuementation:
http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14259/xdb22pro.htm#ADXDB2500
Using HTTP(S) on Nonstandard Ports
By default, HTTP listens on a nonstandard, unprotected port: 8080. To use HTTP(S) on
the standard port, such as 80, your DBA must chown the TNS listener to setuid ROOT
rather than setuid ORACLE, and configure the port number in the Oracle XML DB
configuration file /xdbconfig.xml.I have root priviledges on the box.
I've tried setting the listener file permissions:
chown root:dba /u01/app/oracle/product/11.1.0/db_1/bin/tnslsnr
chmod 6775 /u01/app/oracle/product/11.1.0/db_1/bin/tnslsnr
Also put root in the dba group.
The permissions turn out like this:
-rwsr-sr-x 1 root dba 830854 Jun 17 21:04 /u01/app/oracle/product/11.1.0/db_1/bin/tnslsnr
I stopped the listener, bounced the database, and started the listener again.
But it still shows the process being owned by oracle:
oracle 29682 1 0 21:08 ? 00:00:00 /u01/app/oracle/product/11.1.0/db_1/bin/tnslsnr LISTENER -inherit
Changing the port is easy:
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SYS>select dbms_xdb.gethttpport as "HTTP-Port" , dbms_xdb.getftpport as "FTP-Port" from dual;
HTTP-Port FTP-Port
8080 2100
At this point, I can access the apex home page with the following url:
http://hostname:8080/apex/f?p=4550:10:1454849288245548
I can than change it to port 80:
SYS>begin
dbms_xdb.sethttpport('80');
dbms_xdb.setftpport('2100');
end;
2 3 4 5
PL/SQL procedure successfully completed.
SYS>SYS>select dbms_xdb.gethttpport as "HTTP-Port" , dbms_xdb.getftpport as "FTP-Port" from dual;
HTTP-Port FTP-Port
80 2100
When I try to access apex with the following url:
http://rmdcopslnx1.us.oracle.com/apex/f?p=4550:10:1454849288245548
I get the following:
Failed to Connect
Firefox can't establish a connection to the server at hostname.com.
Though the site seems valid, the browser was unable to establish a connection.
* Could the site be temporarily unavailable? Try again later.
* Are you unable to browse other sites? Check the computer's network connection.
* Is your computer or network protected by a firewall or proxy? Incorrect settings
* can interfere with Web browsing.I can set the port. Just can't talk to it.
This is the entry from the listener log:
<msg time='2008-07-03T15:40:09.741-06:00' org_id='oracle' comp_id='tnslsnr'
type='UNKNOWN' level='16' host_id='hostname'
host_addr='xxx.xxx.xxx.xxx'>
<txt>TNS-12546: TNS:permission denied
TNS-12560: TNS:protocol adapter error
TNS-00516: Permission denied
Linux Error: 13: Permission denied
</txt>
</msg>
So this looks like an permissions problem. But where? I posted
this on the apex forum here:
Re: How can I enable embedded pl/sql gateway to run on port 80
They suggested asking here.

No, that thread did not provide the information that I need. Some more data:
I have the port set to 8080:
Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SYS>select dbms_xdb.gethttpport as "HTTP-Port" , dbms_xdb.getftpport as "FTP-Port" from dual;
HTTP-Port FTP-Port
8080 2100
At this point, I can access the apex home page with the following url:
http://hostname:8080/apex/f?p=4550:10:1454849288245548
I can than change it to port 80:
SYS>begin
dbms_xdb.sethttpport('80');
dbms_xdb.setftpport('2100');
end;
2 3 4 5
PL/SQL procedure successfully completed.
SYS>SYS>select dbms_xdb.gethttpport as "HTTP-Port" , dbms_xdb.getftpport as "FTP-Port" from dual;
HTTP-Port FTP-Port
80 2100
When I try to access apex with the following url:
http://rmdcopslnx1.us.oracle.com/apex/f?p=4550:10:1454849288245548
I get the following:
Failed to Connect
Firefox can't establish a connection to the server at hostname.com.
Though the site seems valid, the browser was unable to establish a connection.
* Could the site be temporarily unavailable? Try again later.
* Are you unable to browse other sites? Check the computer's network connection.
* Is your computer or network protected by a firewall or proxy? Incorrect settings can interfere with Web browsing.
I can set the port. Just can't talk to it.

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You probably should not be using a keyboard bluetooth profile for a scanner, I am not a developer for apple so do not know the location for you to find out the correct profile you should be using for an input device that is not a keyboard. Sorry,
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Can I enable the root user account from the log in screen when I am locked out of the machine?

Hello everyone,
I am working on my friends mac to get it ready to sell. I went into the advanced options of the user and changed the name of the account. That's all I changed. I did read the warning that said if anything was changed it could cause damage, that's why I only changed the name of the user account. I didn't want to mess with anything else. Well, needless to say, I am locked out of the machine. Apparently the root user, system administrator, account was not enabled and I am stuck at the screen that I can get to with my installation disc. So how can I enable the root user account and get back onto the machine from the screen I am at? Can I enable the root user from terminal? I spent a good 8 hours yesterday researching this topic and have come up empty. Changing passwords from commands in terminal is not the problem. I am given just one account to choose from to log on and it's not accepting the password because of the changes I made in the advanced options menu.
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You can reset the password.
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See > Apple What to do before selling or giving away your Mac
http://support.apple.com/kb/HT5189?viewlocale=en_US&locale=en_US
Also See Thomas Reed's How to Prepare your Mac for sale
http://www.thesafemac.com/how-to-prepare-your-mac-for-sale/
and this thread
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Can't Enable interference robustness

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