Additional Airport freezes internet

Here we go . . . it's killing me.
- I’m running a Mac Pro (late 2010) with a local HK cable provider (Netvigator) broadband.
- The cable modem runs to a Netgear WNDR3700 router.
- Netgear WNDR3700 router links to a Cisco SG series switch.
- The house is wired with Cat 5.
I’m trying to connect four airport extremes and a further iMac. As soon as I add the third or fourth Airports (all Airport Extreme - simultaneous Dual-Band II) - the internet and whole network grind to a halt. I’ve verified – as far as I am able - that there are no cabling problems, no problems with any of the individual airports, the router or the switch.
With any two Airports and the iMac it all runs perfectly. The Airports are widely distributed. With any of them, additional peripherals - wireless clients, Apple TV, printers, hard disks etc all work fine. It's the addition of the 3rd and 4th Airports.
Any help greatly appreciated.

Have you tried temporarily connecting the AirPort Express (AX) directly to your Mac via Ethernet?

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How can I extend an Airport Express in WLAN mode with an additional Airport Express box

I'm trying to extend the existing WLAN with an additonal Airport Express box. I read through a bunch of comment throughout the communities here but didn't find what I'm looking for.
My actual Installation consists:
A Time Capsule attached to the Internet router which set up my 1. WLAN range
This WLAN has been extended with an Airport Express BOX creating my extended 2. WLAN range
Now I intend the extend the 2nd WLAN of the Airport Express BOX with an additional Airport Express (creating a 3rd WLAN range) but don't find a way on how to set it up correctly.
The physical situation of the location dosen't allow me to add / replace cabeling (Ethernet or similar). If there is any chance I'd like to avoid power-line connections. And, I'm aware of the impacted bandwith on WLAN / WLAN extensions, but can deal with this.
Regards and thanks for any advice

Two requirements that must be met to do what you want.......
1) An AirPort Express 802.11n must be used. Check the Model No on the label on the side of the Express. It needs to be A1264. Any other model number will not do what you want.
2) The Express must be configured to "Join a wireless network" and the option to enable Ethernet Clients must be checked.
Open AirPort Utility and click Manual Setup
Click the Wireless tab below the row of icons
The box to "Allow Ethernet Clients" must be checked
Please check to verify that your AirPort Express meets both requirements

Is it suggested to use an additional layer of internet security such as ESET Cyber Security Pro - Internet Security for Mac

I just want to make sure I am as safe as possible with all the internet hacking that has been in the Media. I have a Mac Mini that was purchased in Aug. 2013. Is it suggested to use an additional layer of internet security such as ESET® Cyber Security Pro - Internet Security for Mac ???

Mac users often ask whether they should install "anti-virus" software. The answer usually given on ASC is "no." The answer is right, but it may give the wrong impression that there is no threat from what are loosely called "viruses." There is a threat, and you need to educate yourself about it.
1. This is a comment on what you should—and should not—do to protect yourself from malicious software ("malware") that circulates on the Internet and gets onto a computer as an unintended consequence of the user's actions. It does not apply to software, such as keystroke loggers, that may be installed deliberately by an intruder who has hands-on access to the computer, or who has been able to log in to it remotely. That threat is in a different category, and there's no easy way to defend against it.
The comment is long because the issue is complex. The key points are in sections 5, 6, and 10.
OS X now implements three layers of built-in protection specifically against malware, not counting runtime protections such as execute disable, sandboxing, system library randomization, and address space layout randomization that may also guard against other kinds of exploits.
2. All versions of OS X since 10.6.7 have been able to detect known Mac malware in downloaded files, and to block insecure web plugins. This feature is transparent to the user. Internally Apple calls it "XProtect."
The malware recognition database used by XProtect is automatically updated; however, you shouldn't rely on it, because the attackers are always at least a day ahead of the defenders.
The following caveats apply to XProtect:
☞ It can be bypassed by some third-party networking software, such as BitTorrent clients and Java applets.
☞ It only applies to software downloaded from the network. Software installed from a CD or other media is not checked.
As new versions of OS X are released, it's not clear whether Apple will indefinitely continue to maintain the XProtect database of older versions such as 10.6. The security of obsolete system versions may eventually be degraded. Security updates to the code of obsolete systems will stop being released at some point, and that may leave them open to other kinds of attack besides malware.
3. Starting with OS X 10.7.5, there has been a second layer of built-in malware protection, designated "Gatekeeper" by Apple. By default, applications and Installer packages downloaded from the network will only run if they're digitally signed by a developer with a certificate issued by Apple. Software certified in this way hasn't necessarily been tested by Apple, but you can be reasonably sure that it hasn't been modified by anyone other than the developer. His identity is known to Apple, so he could be held legally responsible if he distributed malware. That may not mean much if the developer lives in a country with a weak legal system (see below.)
Gatekeeper doesn't depend on a database of known malware. It has, however, the same limitations as XProtect, and in addition the following:
☞ It can easily be disabled or overridden by the user.
☞ A malware attacker could get control of a code-signing certificate under false pretenses, or could simply ignore the consequences of distributing codesigned malware.
☞ An App Store developer could find a way to bypass Apple's oversight, or the oversight could fail due to human error.
Apple has so far failed to revoke the codesigning certificates of some known abusers, thereby diluting the value of Gatekeeper and the Developer ID program. These failures don't involve App Store products, however.
For the reasons given, App Store products, and—to a lesser extent—other applications recognized by Gatekeeper as signed, are safer than others, but they can't be considered absolutely safe. "Sandboxed" applications may prompt for access to private data, such as your contacts, or for access to the network. Think before granting that access. Sandbox security is based on user input. Never click through any request for authorization without thinking.
4. Starting with OS X 10.8.3, a third layer of protection has been added: a "Malware Removal Tool" (MRT). MRT runs automatically in the background when you update the OS. It checks for, and removes, malware that may have evaded the other protections via a Java exploit (see below.) MRT also runs when you install or update the Apple-supplied Java runtime (but not the Oracle runtime.) Like XProtect, MRT is effective against known threats, but not against unknown ones. It notifies you if it finds malware, but otherwise there's no user interface to MRT.
5. The built-in security features of OS X reduce the risk of malware attack, but they are not, and never will be, complete protection. Malware is a problem of human behavior, and a technological fix is not going to solve it. Trusting software to protect you will only make you more vulnerable.
The best defense is always going to be your own intelligence. With the possible exception of Java exploits, all known malware circulating on the Internet that affects a fully-updated installation of OS X 10.6 or later takes the form of so-called "Trojan horses," which can only have an effect if the victim is duped into running them. The threat therefore amounts to a battle of wits between you and the scam artists. If you're smarter than they think you are, you'll win. That means, in practice, that you always stay within a safe harbor of computing practices. How do you know when you're leaving the safe harbor? Below are some warning signs of danger.
Software from an untrustworthy source
☞ Software of any kind is distributed via BitTorrent, or Usenet, or on a website that also distributes pirated music or movies.
☞ Software with a corporate brand, such as Adobe Flash Player, doesn't come directly from the developer’s website. Do not trust an alert from any website to update Flash, or your browser, or any other software.
☞ Rogue websites such as Softonic and CNET Download distribute free applications that have been packaged in a superfluous "installer."
☞ The software is advertised by means of spam or intrusive web ads. Any ad, on any site, that includes a direct link to a download should be ignored.
Software that is plainly illegal or does something illegal
☞ High-priced commercial software such as Photoshop is "cracked" or "free."
☞ An application helps you to infringe copyright, for instance by circumventing the copy protection on commercial software, or saving streamed media for reuse without permission.
Conditional or unsolicited offers from strangers
☞ A telephone caller or a web page tells you that you have a “virus” and offers to help you remove it. (Some reputable websites did legitimately warn visitors who were infected with the "DNSChanger" malware. That exception to this rule no longer applies.)
☞ A web site offers free content such as video or music, but to use it you must install a “codec,” “plug-in,” "player," "downloader," "extractor," or “certificate” that comes from that same site, or an unknown one.
☞ You win a prize in a contest you never entered.
☞ Someone on a message board such as this one is eager to help you, but only if you download an application of his choosing.
☞ A "FREE WI-FI !!!" network advertises itself in a public place such as an airport, but is not provided by the management.
☞ Anything online that you would expect to pay for is "free."
Unexpected events
☞ A file is downloaded automatically when you visit a web page, with no other action on your part. Delete any such file without opening it.
☞ You open what you think is a document and get an alert that it's "an application downloaded from the Internet." Click Cancel and delete the file. Even if you don't get the alert, you should still delete any file that isn't what you expected it to be.
☞ An application does something you don't expect, such as asking for permission to access your contacts, your location, or the Internet for no obvious reason.
☞ Software is attached to email that you didn't request, even if it comes (or seems to come) from someone you trust.
I don't say that leaving the safe harbor just once will necessarily result in disaster, but making a habit of it will weaken your defenses against malware attack. Any of the above scenarios should, at the very least, make you uncomfortable.
6. Java on the Web (not to be confused with JavaScript, to which it's not related, despite the similarity of the names) is a weak point in the security of any system. Java is, among other things, a platform for running complex applications in a web page, on the client. That was always a bad idea, and Java's developers have proven themselves incapable of implementing it without also creating a portal for malware to enter. Past Java exploits are the closest thing there has ever been to a Windows-style virus affecting OS X. Merely loading a page with malicious Java content could be harmful.
Fortunately, client-side Java on the Web is obsolete and mostly extinct. Only a few outmoded sites still use it. Try to hasten the process of extinction by avoiding those sites, if you have a choice. Forget about playing games or other non-essential uses of Java.
Java is not included in OS X 10.7 and later. Discrete Java installers are distributed by Apple and by Oracle (the developer of Java.) Don't use either one unless you need it. Most people don't. If Java is installed, disable it—not JavaScript—in your browsers.
Regardless of version, experience has shown that Java on the Web can't be trusted. If you must use a Java applet for a task on a specific site, enable Java only for that site in Safari. Never enable Java for a public website that carries third-party advertising. Use it only on well-known, login-protected, secure websites without ads. In Safari 6 or later, you'll see a lock icon in the address bar with the abbreviation "https" when visiting a secure site.
Stay within the safe harbor, and you’ll be as safe from malware as you can practically be. The rest of this comment concerns what you should not do to protect yourself.
7. Never install any commercial "anti-virus" (AV) or "Internet security" products for the Mac, as they are all worse than useless. If you need to be able to detect Windows malware in your files, use one of the free security apps in the Mac App Store—nothing else.
Why shouldn't you use commercial AV products?
☞ To recognize malware, the software depends on a database of known threats, which is always at least a day out of date. This technique is a proven failure, as a major AV software vendor has admitted. Most attacks are "zero-day"—that is, previously unknown. Recognition-based AV does not defend against such attacks, and the enterprise IT industry is coming to the realization that traditional AV software is worthless.
☞ Its design is predicated on the nonexistent threat that malware may be injected at any time, anywhere in the file system. Malware is downloaded from the network; it doesn't materialize from nowhere. In order to meet that nonexistent threat, commercial AV software modifies or duplicates low-level functions of the operating system, which is a waste of resources and a common cause of instability, bugs, and poor performance.
☞ By modifying the operating system, the software may also create weaknesses that could be exploited by malware attackers.
☞ Most importantly, a false sense of security is dangerous.
8. An AV product from the App Store, such as "ClamXav," has the same drawback as the commercial suites of being always out of date, but it does not inject low-level code into the operating system. That doesn't mean it's entirely harmless. It may report email messages that have "phishing" links in the body, or Windows malware in attachments, as infected files, and offer to delete or move them. Doing so will corrupt the Mail database. The messages should be deleted from within the Mail application.
An AV app is not needed, and cannot be relied upon, for protection against OS X malware. It's useful, if at all, only for detecting Windows malware, and even for that use it's not really effective, because new Windows malware is emerging much faster than OS X malware.
Windows malware can't harm you directly (unless, of course, you use Windows.) Just don't pass it on to anyone else. A malicious attachment in email is usually easy to recognize by the name alone. An actual example:
London Terror Moovie.avi [124 spaces] Checked By Norton Antivirus.exe
You don't need software to tell you that's a Windows trojan. Software may be able to tell you which trojan it is, but who cares? In practice, there's no reason to use recognition software unless an organizational policy requires it. Windows malware is so widespread that you should assume it's in everyemail attachment until proven otherwise. Nevertheless, ClamXav or a similar product from the App Store may serve a purpose if it satisfies an ill-informed network administrator who says you must run some kind of AV application. It's free and it won't handicap the system.
The ClamXav developer won't try to "upsell" you to a paid version of the product. Other developers may do that. Don't be upsold. For one thing, you should not pay to protect Windows users from the consequences of their choice of computing platform. For another, a paid upgrade from a free app will probably have all the disadvantages mentioned in section 7.
9. It seems to be a common belief that the built-in Application Firewall acts as a barrier to infection, or prevents malware from functioning. It does neither. It blocks inbound connections to certain network services you're running, such as file sharing. It's disabled by default and you should leave it that way if you're behind a router on a private home or office network. Activate it only when you're on an untrusted network, for instance a public Wi-Fi hotspot, where you don't want to provide services. Disable any services you don't use in the Sharing preference pane. All are disabled by default.
10. As a Mac user, you don't have to live in fear that your computer may be infected every time you install software, read email, or visit a web page. But neither can you assume that you will always be safe from exploitation, no matter what you do. Navigating the Internet is like walking the streets of a big city. It's as safe or as dangerous as you choose to make it. The greatest harm done by security software is precisely its selling point: it makes people feel safe. They may then feel safe enough to take risks from which the software doesn't protect them. Nothing can lessen the need for safe computing practices.

Airport and internet sharing turns off by itself

Hi everyone, I have an imac that I purchased earlier this year, and I use internet sharing to get internet for my ipod touch. Until a few months ago, this worked fine but now airport and internet sharing turn off every time I restart the computer and I have to turn both back on every time. Is anyone else experiencing this problem or know hot to fix it?

Hi and Welcome to Apple Discussions...
Download and install the v10.5.8 combo update available here.
http://support.apple.com/downloads/MacOS_X_10_5_8_ComboUpdate
One of the "fixes" includes: - compatibility and reliability issues when joining AirPort networks.
After the installation, repair disk permissions.
Quit any open applications/programs. Launch Disk Utility. (Applications/Utilities) Select MacintoshHD in the panel on the left, select the FirstAid tab. Click: Repair Disk Permissions. When it's finished from the Menu Bar, Quit Disk Utility and restart your Mac. If you see a long list of "messages" in the permissions window, it's ok. That can be ignored. As long as you see, "Permissions Repair Complete" when it's finished... you're done. Quit Disk Utility and restart your Mac.
Carolyn

Use airport for internet and ethernet for local?

Hi. Ive searched around and cant find an answer for this.
I have a 27" imac connected to my router and all works fine for accessing the internet.
I have several other devices close by that I want to connect via ethernet. If i connect the imac to another router via ethernet I can browse my local devices but loose internet connectivity. It is as if the imac will suspend the airport connection while the ethernet cable is connected. I don't want my second router to act as a bridge as it doesn't support N speeds.
Essentially, I want the imac to use airport for internet and the ethernet port for local files.... The only workaround I have is to unplug the ethernet cable from the back of the imac when i want to use the internet. I'm hoping it's just a DNS issue, but cant seem to resolve it.
I do not need internet connectivity for the other devices and don't see how i can do that without enabling the wireless side of my second router and then creating a bridge...
Any suggestions?

It is as if the imac will suspend the airport connection while the ethernet cable is connected.
The Connection Order on your iMac is set so that if both AirPort and Ethernet are "on", the iMac will give priority to the Ethernet connection.
If you want to configure your iMac so that it gives priority to an AirPort connection if both AirPort and Ethernet are "on", give this a try:
Open System Preferences (gear icon on the dock) and open Network
Click on the small gear icon at the bottom of the connection list on the left
Click on Set Service Order and drag AirPort to the top of the connection order list
Click OK, then click Apply
Now, if both AirPort and Ethernet are active, your iMac will give priority to the AirPort connection. If you want to connect using Ethernet, you will have to turn AirPort off by clicking the fan shaped AirPort icon at the top of your computer screen.

I have an airport extreme attached to cable, then one airport express to extend the range. when i try to add an additional airport express to extend range in another area of house, can't get it to work. unility says it has found a new base station

i have an airport extreme attached to cable, then one airport express to extend the range. when i try to add an additional airport express to extend range in another area of house, can't get it to work. utility says it has found a new base station and asks if i want to use it. if i click yes, then the old setup is disabled.

Ok, thanks for clarifying which models you have. Please see the following Apple Support article on how to configure these older base stations for a Wireless Distribution System (WDS).

Trying to extend the WLAN range by adding an additional Airport Extreme second gen with Ethernet as backchannel.

Hi,
I'm trying to extend the coverage of my home WLAN by adding an additional airport express. I want to use Ethernet as the back channel but whatever I do this ends up in a situation where the WLAN dies completely. I have been able to extend the range by using WLAN to WLAN extension but this reduced the bandwidth a lot.
I have an VDSL modem and uses a airport express as access router. with this unit operating by iteself everything works fine.
It is when I add a second airport express (both second gen) that I get in trouble.
Any idea of what goes wrong?

It is best to set up the extra AE to create a wireless network. You should use the same name (SSID) as you did when setting up the first one. Also use the same password and encryption.
Put the network channel selection on automatic or select different channels for both networks.

When trying to install a wireless printer, the WEP password says its incorrect. Is this a problem with the airport, my Internet provider or HP? I know the password is correct.

When trying to install a wireless printer, the WEP password says its incorrect. Is this a problem with the airport, my Internet provider or HP? I know the password is correct.

Your AirPort Extreme supports WPA.
WEP is outdated and considered fairly useless, so use WPA.
Be sure you are using AirPort Utility 5.6. If you are not running Lion then use AirPort Utility 5.5.3.
AirPort Utility 6.0 cannot administer 802.11b/g base stations.

Sent wake-on-lan command will reset airport extreme internet connection?

hi,
I have a problem with my airport extreme.
1, My airport extreme is set always stay connected to internet. If I reboot my airport extreme, it can not update my airport extreme global host name to my DNS, I need to reconnect manually.
2, if I sent a wol command to my NAS, airport extreme internet connection will be reset. it can not update my airport extreme global host name to my DNS, I need to reconnect manually.
zhi

Derek-
Since I could not find an answer on the support site. I contacted Apple Support. Once I explained the symptoms the tech seemed to know exactly how to address my issue. I will explain what happened in hopes that it will assist you. It seems that the issue has to do with the type of wireless network security set up in the Airport Extreme that conflicted with the Vista notebook's wireless adapter.
The tech had me launch Airport Utility, log into the Airport and Click on the Wireless. First he had me change the Radio Channel Selection from Automatic to Manual and changed the 2.4 GHz channel to 9 (from default 11) and the 5 Ghz channel to 157. The wireless security was set to WPA/WPA2 and he had me change it to WEP (Transitional Security Network) and I entered a 13 character key.
This resolved the internet connection issue with the Vista laptop immediately, but now I cannot print to my wireless Lexmark printer. I have a support email to Lexmark. It seems that the Lexmark driver/software only lists WPA in the install dialog and does not include WEP. My guess is that this is the source of the problem.
I hope this helps.
-Eye

Can you use Airport for internet and Gigabit Ethernet for file sharing?

i would like to complicate my network setup by using my Airport connection to the internet for internet access and then use the Gigabit Ethernet connection between my G5 tower and the MacBook Pro for file sharing, Compressor's distributed rendering, and possibly iTunes music/video sharing for Front Row.
is this possible? could i just run a cat 6 cable between the two and network them together? or do i need to get a Gigabit Switch?
i suppose i could just try running the cable between them and see what happens. i don't think these new machines require cross-over cables since the ethernet ports auto-detect that now, but is a cat 5e or cat 6 cable required for Gigabit speed?
thanks,
scott
PowerMac G5 2.5GHz Mac OS X (10.4.5)

Yes it would work. The Ethernet network would be used for local file transfers and the Airport for internet. However you will need to make sure Ethernet is at the top of the list of network ports in the Network Preferences.

Airport iPhone Internet Sharing

hi,
I am trying to configure so that I can surf the internet on my iPhone through internet sharing my airport on MBP.
I have configured IP addresses manually and set the manual proxy to 10.0.0.1 on port 8080. When I ping the iPhone it responds between 6 & 8 times and then drops off never responding again until I start and stop airport and internet sharing. When i open Safari on the iPhone it instantly says it cannot find the server.
Personal Web Sharing is turned on. What am I missing here? This did work until I disconnected yesterday. Nothing changed in my settings and even though browsing was slow on the iPhone it was able to access webpages through Safari.
I'm thinking it is something to do with port 8080 ... it has become disabled for some reason.
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I've been having the same problems as everyone else here. Trying to share internet connection from my ethernet wired iMac to my MacBook and my iPhone. Tried all the workarounds, but nothing works, or lasts very long.
Yesterday, I finally talked with AppleCare for over an hour. All their suggestions (trashing preferences, changing settings, etc.) failed, as well. The AppleCare person then put me on hold to speak to an engineer, who told her that Snow Leopard no longer supports Internet Sharing as of 10.6.1.
Not willing to accept that answer, I had them set up an appointment at the Apple Store Genius Bar for me, and after chatting with the Genius for a while, he also confirmed that Internet Sharing is no longer supported under Snow Leopard. Apparently, there were many hardware issues that the engineers decided to circumvent, and so did not include support for Internet Sharing with the internal airport in Macs. They said that the Airport it is intended to receive, not to send a signals! Yet, it worked fine, doing just that, under Tiger and Leopard! The only fix he could offer was to wipe my drive and take me back to 10.5, which I declined.
However both the guy at the Genius Bar and the lady at AppleCare inferred that Apple "may" release another update to fix this issue, if they get enough complaints and bug reports.
So, there you have it. Apple no longer officially supports Internet Sharing in Snow Leopard.

Airport Extreme: Internet working when directly from modem to computer, but not when using airport extreme. i have hit the reset pin and now do not know what to do.

Using Airport Extreme:
- Internet working when directly from modem to computer
- Internet NOT working when modem is connected to AE
- Internet NOT working when modem is connected to AE and AE is connected to computer
- I have hit the reset pin
Now what do I do?
(in advance - lots of love to anyone who helps out)

What sort of Internet connection do you have and who is your Internet Service Provider?
What is the make and model number of your modem?

Losing connection to Airport Extreme/internet daily.

It sounds as though I am not the only one having problems with the Airport Extreme lately. I was running without any problems until about a week ago. For some reason or other I lost connection to the Airport and internet. I ran diagnostics and any other reboot until I finally had to reset the Airport to the factory settings by pushing/holding the button on the back. It has now happened every day this week. After I reset and rebuild my network the next day it's gone.
I'm running 7.4.1 firmware and 5.4.2 Airport Utility--There are earlier versions of firmware listed in the utility but I don't know whether or not to revert back.
Does anyone have any suggestions? I'm getting really tired of resetting.

ok, after resetting and restarting dsl modem and laptop i tried the following:
System Preferences > Network > Airport > Advanced
Removed my preferered network
And again added it
Ok
Apply
Turned Airport Off and On
and i was up again. btw i had a connection but activity monitor was showing me i was not or hardly receiving data, now it is...
hope it helps for you!
Message was edited by: Nsedap

Airport loses internet connection more often now. Have to reboot. Its about 3-4 years old now. Is there something I can do?

Airport loses internet connection more often now. Have to reboot. Its about 3-4 years old now. Is there something I can do?

If your problem is due to interference, you might be able to improve things by changing the channel. An AirPort base station that old is probably an 802.11b/g model, which suggests that the best choices for channel are 1, 6, and 11.

Airport Utility Internet icon blinks orange to green

Hi,
My Airport Utility Internet icon blinks orange to green. I guess there are some problems with it and the icon is supposed to be green all the time.
Is there a fix for this?

Im having the same issue. My modem/router is connected to a switcher on the 1st floor, and I have an Airport Extreme connected in the 2nd floor. Internet Icon constantly changes from green to orange and my AE is always green.
My experience in navigation does not affect my web browser nor AppleTV, however, I cant use my Nest app because it says that my Nests are offline...
Any suggestions on how I can solve this issue?
See below how the internet icon changes (every 3-4 seconds)

Additional Airport freezes internet

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