DHCP issues connecting a Macbook to an Airport Express/Extreme network

My fiancée's macbook sometimes won't connect to our network, while my MBP has no such problem. A wireless connection is successfully established, but it doesn't get an IP address assigned. I've tried turning on/off Aiport, renewing the DHCP release, but to no avail. It continues to have a self-assigned IP address.
Currently, a reboot (much to her annoyance) is the only known solution.
My network consists of an Airport Extreme base station (v5.7) and an Airport Express enabled as a WDS remote base station.
Any tips into how to better diagnose this problem will be much appreciated.
At the very least, is there a way to restart (SIGHUP?) the Airport daemon as if it were going through a reboot?
Thanks
2.16Ghz 17" Macbook Pro Mac OS X (10.4.8) 1.8GHz Power Mac G5

I had to reset the password at the Airport Express unit and essentially start over with it.

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Issues Connecting to internet with new Airport Express

Running a Macbook pro 15" - 10.4.11
I just bought a brand new Airport Express a few days ago. I just recently got my internet service through Comcast restored and am eager to get a wireless network up so I can play Xbox Live again.
So issue is this: I plug the ethernet cable from the Cable modem into the airport, the light goes green. The computer is registering a strong signal, Network preferences says Airport is connected to my network. However, Safari keeps saying its not connected to the internet. When i run system diagnostics, I get a green light on Airport, Network settings, system settings, and ISP. But the light on Internet and Server stay red, and Diagnostics says it can't fix the problem and I need to contact my ISP. Comcast said they couldn't help, my connection was fine and they even refreshed it to no avail. When I plug my Ethernet cable directly into my Macbook pro, I get on the 'net no problem. I'm dumbfounded.
I'd appreciate any sage wisdom offered. Thanks!
p.s: Also, when I run a connection test on Xbox 360, it picks up my network, connects quickly, ISP confirms, but ultimately fails at DNS Server. Hmm.

bl4ckr4bbit, Welcome to the discussion area!
Most cable modems require that you power them off when you switch the Ethernet connection from one device to another. Until you reset the modem it will not communicate with the new device. When the modem is powered on it detects the new device and starts talking to it.
Some cable modems have a reset button on the back for this reset.
Some cable modems have a small internal battery which must be removed for this reset to occur.
Sometimes the cable modems must be unplugged several hours or even overnight to allow equipment back at the ISP to reset.
Did you power off the cable modem when switching the Ethernet connection?

How to connect my macbook to the Airport with the same IP?

Hi to everybody!Most of the times I want to use amule it is firewalled because the IP changes everytime I connect my macboook to the Airport express: 10.0.1.2 or 10.0.1.3 and so on. Is there a way to say that I want my macbook to be always connected with the same IP? Since I couldn't do this I started to map the amule ports (TCP and UDP) for each IP, but I realised that I can't use the same ports (let's say TCP 4662 and UDP 4672) for different IPs. Why is that?
Thanks in advance!

lellolelotti wrote:
Most of the times I want to use amule it is firewalled because the IP changes everytime I connect my macboook to the Airport express: 10.0.1.2 or 10.0.1.3 and so on. Is there a way to say that I want my macbook to be always connected with the same IP?
I believe that an AirPort Express can be configured to do that. Launch AirPort Utility, enter "manual setup" mode, select the Internet panel, then the DHCP tab. There should be a section of the screen at the bottom labeled "DHCP Reservations". Click in the "plus" sign at the bottom of that section and fill in the details that you want.
I can't use the same ports (let's say TCP 4662 and UDP 4672) for different IPs. Why is that?
You have to tell the router to send messages addressed to a certain port to a specific IP address, otherwise it wouldn't know how to route the messages. It would be like trying to assign a phone number to two different phone line circuits.

Iphone will not connect to airport express extended network - macbook and ipad will - Help

Iphone will not connect to airport express extended network - macbook and ipad will without problems.
iphone will connect to base station no problems, I've restored settings and started again but still the same, the iphone picked up the network for the last couple of months, but not now ?

I'm having the same issue. My AExpress used to give a good signal strength on the far side of the house extending he network created by my Extreme. However, I've noticed lately that my iPhone does not receive the same strong signal it once did. AE has a green light, I've rebooted it, and my Extreme but there is no change in signal strength. Other than the green light, how can I tell if the Express is working if I don't get a good network signal?

I can print from my macbook pro using airport express usb connected printer, however my iPad is looking for an airprint printer. Can I direct the iPad to the usb connected printer. Both macbook and iPad confirm a wifi connection through the airport exp.

I can print from my macbook pro using airport express usb connected printer, however my iPad and iphone are looking for an airprint printer. Can I direct the iPad/iphone to the usb connected printer. Macbook iphone and iPad confirm a wifi connection through the airport express.

You will need to install an App like Print Central on the iPad to try to print to the printer. It will allow you to print to most printers. Check with their support folks if you need more info.
PrintCentral for iPad on the iTunes App Store

HT3382 why i can't listen from my tv when i connect my macbook air by airport/hdmi cable?

why i can't listen from my tv when i connect my macbook air by airport/hdmi cable?
but just when i try to open any website. itunes work normal

Hi
Does your Macbook support Airplay? What year is it? Typically mid 2011 and newer Macbooks offer Airplay capability.
Cheers

Cannot connect airport express to ipad I keep receiving the message: "an unexpected error occurred" when I try to connect my Ipad to my airport express. Does anyone have a solution?

cannot connect airport express to ipad
I keep receiving the message: "an unexpected error occurred" when I try to connect my Ipad to my airport express. Does anyone have a solution?

I could not "see" my Express via my wireless router or via the Airport Utility until I reset it to Factory Settings by unplugging it then holding in the tiny reset button while plugging it back in, waiting for the flashing yellow LED signal before letting go.
Then I set it up to DHCP - "connect to wireless network" and DOWNGRADED the firmware to 7.3.x
I would tell you the exact Firmware but I can no longer "see" the Airport express............ AGAIN or still.....
BUT at least I am listening to music streaming from my MacBook Pro... Hmmm.
I log back into the router (Linksys WRT110) and it no longer shows the Airport Express as a DHCP client AND the Airport utility can no longer "find" any Airport Devices..
So if I don't move, or there are no cosmic events, or maybe my KARMA is effecting the device or my "VIBES" are good, but I'm not sure if will continue to work.. Sure would like to use this little device from hel*.
Since I have had this Airport Express I have spent many hours trying to get it to work.
It works just long enough to fool me and then takes a dump...
Maybe this time?
5 Minute later...
Music was playing. I went into iTunes and switched from Airtunes to Computer speakers. When I tried to switch it back GUESS WHAT?
[An unknown error (-15006) occurred while trying to connect to remote speaker "Airtunes"]
Wonderful Green LED though. Totally useless piece of equipment AFAIK.
Message was edited by: Daniel Shattuck

Do I need a cable connecting my Time Capsule to Airport Express if I want to use the AE to extend my wifi network range?

I'm a bit confused by conflicting advice given by my local Apple shop and my internet provider.
My cable modem is plugged into a Time Capsule which I use to access the net wirelessly almost all over the house. The one spot the wireless doesn't quite reach is (of course) where I now need my office and iMac to be.
I thought I could just plug in an Airport Express somewhere in the middle to extend the network's range but the guy at my local Apple shop said the Airport Express would need to be connected not just to power but to the Time Capsule, via a cable. That's fiddly and would involve cables running under the floor or along walls and ceilings, not something I can or really want to do. It's not really practical to try and move the cable connection point either.
My internet provider suggested a netgear wireless extender and said that would only need to be plugged into power. The reviews of the netgear product I found comparing it to Airport Express suggest that the Express doesn't need to be connected to anything other than power either to extend a network range (which was what I originally thought).
So I'm wondering which advice is correct? I've also read that the netgear product isn't all that easy to set up so I'd rather stick with. Apple if it will do what I want.
Thanks for any help out there

I thought I could just plug in an Airport Express somewhere in the middle to extend the network's range but the guy at my local Apple shop said the Airport Express would need to be connected not just to power but to the Time Capsule, via a cable.
I'm sure that the guy at the Apple shop means well, but he is not correct.
While it would be preferable to connect the Time Capsule and AirPort Express using a wired Ethernet connection, the Express can connect wirelessly and extend the wireless signal the same way....IF...it is located where it can receive a good wireless signal.

I have an Ipad and Iphone but I don't have an Airprint, only a WIFI printer,my question is if I connect the wifi printer to Airport express, can I print from Ipad and Iphone ?

I have an Ipad and Iphone but I don't have an Airprint at home but only a WIFI printer, my question is if I connect the wifi printer to Airport express, can I print from Ipad and Iphone ? Please help me if anyone knows about this.

Unfortunately, connecting a non-AirPrint-enabled printer to an AirPort base station's USB port will not make it AirPrint-ready.
You will need to use another solution, like Printopia, to be able to print to this printer from an iOS device.

After iTunes update, can't connect to remote speakers via Airport Express

I updated to iTunes 10.1.2.17 the other day, and ever since then, I can't connect to my stereo via my Airport Express. I get this message: "An error occurred while trying to connect to the remote speaker 'Airport Express'. The network connection failed."
My Airport Express firmware is up to date and I have not changed any settings since the iTunes update.
Anyone else have/had this problem? Any ideas?

I run Vista and I had the same problem after updating to the latest version of iTunes: Apple TV would indicate "Loading Library" for ever and nothing would happen. This had never happened before.
I tried different tricks like turning on/off home sharing on both iTunes and Apple TV (didn't work), unplugged/plugged Apple TV (didn't work), restore Apple TV (didn't work).
Eventually the solution was actually very simple: go to Firewall settings and make an exception for iTunes. I don't know why that was not necessary before the update, but it made the trick.

I keep getting this message An unknown error (-15006) occurred while connecting to the AirPlay device " AirPort Express".

Please help. I have been having major difficulties with my Airport Express. It used to work fine but for the last year or so it continually disconnects, skips and ultimately drops out and itunes gives me this message "An unknown error (-15006) occurred while connecting to the AirPlay device “AirPort Express”. I keep resetting, unplugging, restarting Itunes, or my computer. It works for a couple of hours and then I get the message again. It's making me nuts and was a bummer at last week's party when we had no music, yet again. I have looked up the support discussions, but there is no answer as to how I can fix it. I am currently using Mt Lion OS. Does this have anything to do with it? Checked for software updates, but nada.
Any suggestions.

It may be possible the where you have the AX located may just be in a spot where it does not get a good signal even it is only 8 feet away.
I suggest that you download and install iStumbler. You will use it to determine the signal quality by making Signal-to-Noise Ratio (SNR) measurements. This will be easiest if your Mac is a laptop ... or you can borrow one. When taking the measurements, you only want your "main" AirPort running as this is what we want to measure at the location of the AX.
SNR (in dB) = Signal (in dBm) - Noise (in dBm)
You can easily find the Signal and Noise value using System Profiler on your Mac laptop.
ref: Click on the Apple icon on the menu bar > About This Mac > More Info... > Contents > Network > AirPort > Interfaces > en1 > Current Network Information > Find your wireless network > Signal / Noise
While your still in the System Profiler, note the value for Transmit Rate.
These values should be negative numbers. For example, mine currently read: -67 dBm / -95 dBm, with a transmit rate of 27 (Mbps). Plugging in these numbers yield: SNR = -67 - (-95) = 28. My Mac Mini is about four rooms away from my AEBS with about five walls between them. As you can see, the signal is still quite useable ... but the bandwidth is minimal, especially for streaming.
SNR Guideline
40dB+ SNR = Excellent signal
25dB to 40dB SNR = Very good signal
15dB to 25dB SNR = Low signal
10dB to 15dB SNR = Very low signal
5dB to 10dB SNR = No signal
Please post back your results.

Connecting a macbook pro to a verizon wireless network

how do i connect a macbook pro to a verizon wireless network? Wi-Fi connection automatically assigns an IP address and indicates that the Mac won't be able to connect to the internet. Two other MacBook Pros connect to the network without any problems. These Macs travel from home to school and back again and automatically reconnect when they are brought into the house.

I have read a few corporate IT policies and they are all PC-centric.
Unless your mac runs any windows tools such as Bootcamp Wine, Crossover, or a VM in parallels or VMware then your mac has no virus implications.
A few years ago word documents could be infected with macro viruses and although did not affect a mac a mac could pass them on. Up to date versions of Microsoft Word documents are not vulnerable to this flaw.
You could install ClamAV its a free anti virus app for the mac that would keep your IT dept happy.
Maybe I can find out what the WEP key is with a utility of some kind.
If you had a compatible usb wifi dongle and kismac you could crack their WEP key but this would be probably illegal in your country so I dont condone this activity but if you got written permission from your employer to give them a free penetration test, something that normally involves hiring a security company this would save them money and highlight the insecurity on their network.
Or use an Ethernet connection.

Lost connection to one of my Airport express units. Serial number 44500WQV0. Message in Airport Utility is to use Version 5.6 to configure base station. I have version 6.3.1. Both airport express units bought at same time few years ago.

Hello all.
Lost my connection to one of two airport express units. Both purchased few years ago. Use them to stream music to house speakers via WiFi. I have v6.3.1 of Airport Utility. Message says to use v5.6 to reconfigure this base station.
How do I do that, please?
Mahesh

You can use the following workaround to install AirPort Utility 5.6 on a Lion or Mountain Lion Mac:
Be sure to read the caveats at the end.
Lion / Mountain Lion's package installer will refuse to install superseded versions of AirPort Utility. Instead you will need to use a package extractor such as Pacifist or unpkg. Pacifist is shareware, unpkg is free.
Download Pacifist here: http://www.charlessoft.com/
Download unpkg here: http://www.timdoug.com/unpkg/
Download AirPort Utility 5.6 here: http://support.apple.com/kb/DL1482
When the AirPort Utility .dmg file finishes downloading, open it to expand and reveal the AirPortUtility56.pkg package installer file.
Directions for Pacifist (I do not have screenshots for unpkg but the idea is similar):
Open Pacifist and from its File menu, navigate to the package and open it.
Click the "reveal triangles" until you see AirPort Utility 5.6.app:
Select it and then click Install from Pacifist's toolbar. It will then be installed in your Utilities folder, and you can quit Pacifist.
The most recent version of AirPort Utility included with Mountain Lion should be used to configure 802.11n - capable AirPort Base Stations. Make no attempt to delete it. It and the older version (which will bear the unique name "AirPort Utility 5.6") can peacefully coexist. Use the older version only as necessary for older AirPort Base Stations that cannot be administered any other way.
If you happen to have an archived copy of the AU 5.6 app somewhere, such as a Time Machine backup or equivalent, you can simply restore it or drag the app to your Mountain Lion system's Utilities folder instead of resorting to the above procedure. It will run without complaint. It is only the package installer that is the problem.
Keep in mind that Apple's decision to abandon support for the original AirPort Express and AEBS was for reasons known only to them. Remember that you are using obsolete equipment, should some future OS X feature not work for you.

I need a new modem. Which modems work well with MacBook Pro and Airport Express?

I need a new modem. Which modems work well with the MacBook Pro and Airport Express?

You need to inquire from your ISP which modems are compatible with their netwrok. They should give you a list.

Intermittent issue streaming music from iTunes to airport express

I'm experiencing an issue when streaming music from my iMac to two airport expresses (1st generation). Music will be playing fine but once in a great while, when a new song starts it's like a digital bomb has gone off. It's similar to an amber alert coming through the speakers instead of music. When I stop the song and start it again, back comes the music. This has happened to many different song files so I've discounted the possibility that it's a corrupted file. I've not been able to determine any other pattern that would give me some insight into the root of the problem. The problem has existed across two different routers so doubtful that’s a factor either. All my software (iTunes and OS) are up to date and generally the system works well. Is anyone else experiencing this? Any solutions or advice? I’m at a loss on how to resolve.

Update: this problem exists when just listening to music on iMac with iTues; no airport express or network involved. Something, somewhere in the software is causing this.

DHCP issues connecting a Macbook to an Airport Express/Extreme network

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