MBP losing WIFI when Airport doesn't

My Mac BookPro has only g airport and is not upgradable. I also have an iPad (original). The MBP regularly loses the signal from my Time Capsule router. any settings that can stabilize this?

Have you considered posting in the MacBook Pro forum, this is the iMac forum.
A loss of signal can be caused by many things, sometimes just changing the channel on your Time Capsule will work. If you live in a suburban area you are probably competing for channels with your neighbors. You will need to use Airport Utility to change the channel. Another possibility is the DNS setting your ISP uses. Please read MacWorld's DNS Troubleshooting article and change the DNS setting on your computer.
Roger

Similar Messages

My Macbook Pro Keeps losing Wifi when awoken from standby

Hi There,
Please help. My Macbook Pro won't register my home network when I awake it from standby, or sometimes even when I turn it on from being 'off'. It won't connect to the internet or even find my home Network. I know that it is not my router, because my wife is sitting on her windows laptop next to me, fully connected to to our home network. My Iphone also picks up the Network. It's like my Macbook Pro can't even see it. At all....
Please help...
I am using my phone's personal hotspot tp type this as i still connect to the internet...
Any advice greatly received....

Change your router channel number. Most times this works & is all you have to do.
See KB Articles: http://support.apple.com/kb/HT1401 AirPort troubleshooting guide
http://support.apple.com/kb/HT2712 Using network locations in Mac OS X
============================
System Preferences>Network
Click the Assist Me button.
In the next window that pops up, click the Diagnostic button & do the necessary.
Also, run the Airport Utility app which is located inside the Utilities folder (if using one of Apple's routers. If using a 3rd party router, contact the vendor and/or read its user manual.
=====================
I'm thinking I might as well return the Macbook
You have 14 days from the purchase date to do the above.

Losing wifi when connecting my cintiq 21UX to my 2014 iMac

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How come my macbook Pro doesn't automatically connect to my wifi when it is saved under known networks and i have the box checked under network settings?

Random35,
does your wi-fi router filter access by MAC address? If it does, then have you added your MacBook Pro’s MAC address to your router’s whitelist of acceptable MAC addresses?

Can't access Time Machine settings when AirPort (WiFi) is on.

Problem:
My iMac (2.66 MHz Inter Core Duo) with 10.5.8 needs an upgrade to Maverick...it is connected to my home network with AirPort
I have a NAS on my home network (Verbatim MediaShare 2TB) wired connected, which I have had working as a drive for TM-backups. It stopped working with TM about 1,5 year ago, did never figure out why, backups just failed.
Now I want to get it going again for a fresh backup prior to the OS upgrade.
The issue I am facing now is that I cant access the settings for the backup drive in TM settings as the AirPort is on.
I need AirPort on to be able to mount the drive of the NAS, but then I cant access TM-settings. If I switch of AirPort temporarly to access TM-settings the drive which I need to select is dismounted.
I am kind of stuck. Why is this happening?
BRG
/Johan

BDAqua wrote:
Got me really confused, sorry...
Can't access Time Machine settings when AirPort (WiFi) is on.
the NAS Volume for backup "COMPUTERSBACKUP$" can be mounetd as it should when AirPort is on.
Hi, label explains the problem pretty much...
That is: The dialog in TM where the disk for TM to put backuped data is not accessable when the iMac has connection to my home network. The button is there, but when i press it notheing happends. If i deactivate the network interface, the dialog opens.
I hope this claryfy my problem.
BRG
/Johan

TS1398 What would be the reason why when i try to connect my iphone to a wifi server; it doesn't work? It also doesn't pick up any wifi connections.

What would be the reason why when i try to connect my iphone to a wifi server; it doesn't work? It also doesn't pick up any wifi connections.

go to settings>general> reset network connections and then try again

MacBook Pro losing WiFi connection. Problem with AirPort Card

My MacBook Pro keeps losing Wifi connection. Sometimes it says no AirPort Card is installed. It has also been freezing, and the only solution is to hold the power button to turn it off. Then I have to restart the computer, but everything I was working on is lost.
Any ideas what is wrong or how to fix?

Sounds like your WiFi chip is going bad. Have you gotten it checked by an Apple Store rep ?
Have you deleted the contents of /Library/Preferences/SystemConfiguration, rebooted and tried ?

Can,t access wifi via airport after left my mbp idle for just 1 minute

i can,t access wifi via airport after left my mbp idle for just 1 minute, i need to turn airport off & turn airport on if i left my mbp idle for just 1 minute or less...why this thing happen? anyone can help thanks in advance

Something that came to mind after rereading you post relates to the particulars of a "hard" reset on the Snow.
A “hard” reset removes current setting from the base station. You must then connect to the base station using the AirPort Admin Utility and upload AirPort 2.0 or later software to return the base station to its default settings. A base station in a hard reset is only accessible through the LAN port, not via wireless connections ... so attempting to access with the AAU, via a wireless client, will not work.
The following is the process to reload the AirPort software: AirPort Base Station (Dual Ethernet) : How to reload software from Mac OS X

My ipod only connects to the wifi when i am in the room of the router. as soon as i go out of the room into some other room it disconnects and doesn't connect again. unless i go to the room of the router. i have an ipod 4 with ios 6.1.6

my ipod only connects to the wifi when i am in the room of the router. as soon as i go out of the room into some other room it disconnects and doesn't connect again. unless i go to the room of the router. i have an ipod 4 with ios 6.1.6

Does the iOS device connect to other networks? If yes that tend to indicate a problem with your network.
Does the iOS device see the network?
Any error messages?
Do other devices now have this problem?
Did the iPod stay connected before?
Try the following to rule out a software problem:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Power off and then back on your router
.- Reset network settings: Settings>General>Reset>Reset Network Settings
- iOS: Troubleshooting Wi-Fi networks and connections
- Wi-Fi: Unable to connect to an 802.11n Wi-Fi network
- iOS: Recommended settings for Wi-Fi routers and access points
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.
If still problem and it does not connect to any networks make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem. Could be a loose antenna connectin
http://www.ifixit.com/Guide/iPod+Touch+4th+Generation+Wi-Fi+Antenna+Replacement/ 3640
Apple Retail Store - Genius Bar

Internet doesn't work for desktop PC when Airport Express is plugged in

Hey,
I've tried searching for an answer to this problem but haven't found exactly what I'm looking for.
I recently bought AirPort Express so that I could use wireless on my MacBook while parents could go on the internet with their PC (running Windows XP). Their PC is connected directly to the modem (DSL I believe).
I have succeeded in setting up a wireless network so that when I plug Airport Express into the modem's ethernet slot, I can go on the internet on my MacBook. The problem is that when Airport Express is plugged in, the internet is no longer working on the PC. When you open a browser, it just says the page cannot be accessed right now.
I should mention that on the modem, there are green flashing lights for Power, DSL, and USB, but the slot for Ethernet is not lit up.
Does anyone know if this can be fixed by changing configurations on the PC? Or I have misjudged what Airport Express does, exactly?
Thanks

You could continue to use the existing modem, but you would need to change to a router that also incorporates a built-in Ethernet switch, like the AirPort Extreme Base Station (AEBS) or similar routers by other vendors. This type of router would connect to your existing modem's Ethernet port but provide both wired & wireless clients with Internet connectivity ... so in this case your parents' PC would connect to one of the AEBS's Ethernet ports and your Mac can connect wirelessly.

How can i change the ID on my wifi so it doesn't include my first and last name?

How can I change the ID on my Wifi so it doesn't include my first and last name when others see it?

If you are still having difficulty
Open Macintosh HD > Applications > Utilities
Locate the listing for AirPort Utility and Right Click on it
Click Get Info
Look for the Version in the next window that should appear on the left side of your screen.

Ipads losing wifi

Lately my 3 iPads are losing wifi connectivity.
I have 2 iPad 2 and 1 iPad mini.
Randomly, they all lose connectivity to the internet. Turning wifi on and off on the iPad usually fixes this issue.
My iPhone and MacBook however don't show that behvior.
Any ideas?
I am running a 5th generation Airport Extreme with firmware 7.6.3.
Thanks.

I did what you suggested. Turned off the whole network, and then tuned it back on, one device at a time.
While at first this seemed to have solved the issue, it did and does re-occur.
When I open my iPad from sleep and continue watching a streaming movie in Safari, after a few minutes the movie pauses by itself. Switching to Chrome to see if I can still browse the web then tells me I lost all wifi connectivity.
Turning off and back on wifi in the settings panel fixes this. I can then resume the movie.
It does seem to be connected to the iPad and not the AirPort Extreme, as I can still connect from my iPhone to the Internet, when my iPad lost connectivity.
What is strange though, is that this only started to happen recently, probably shortly after I purchased the iPad mini. But then, the other two iPads in the house (version 2), also started to show this behavior.
The only other change I remember was the upgrade of the AirPort Extreme to v. 7.6.3. My MacBookPro never loses connection, btw. The Airport's settings are the way Apple recommends them, leaving the channels on auto, using both bands for the same SSID (5.8 and 2.4ghz).
This is now starting to annoy me.
Anyone has more ideas?
Thanks!

IPad 2 losing WiFi Router seems fine

The device is an iPad 2, just for reference.
About a year ago, our router went kaput, and we replaced it. I noticed, not only on the iPad but other devices, the range seemed to be not as good, with the bars one or two less. But, the internet speed didn't seem to be affected, so we didn't worry about it.
This router works fine with all our other wireless devices, so it doesn't seem to be in the router itself. However, the iPad wifi works just fine in other locations, so it doesn't seem like the problem is the iPad either. The iPad doesn't pick up the router unless within 3 feet of it. If you move beyond 3 feet, it loses the connection entirely.
A few weeks ago, the iPad started losing Wifi periodically, and then within the last week, it has become more and more frequent, until the point it lost Wifi entirely unless immediately next to the router.
I know this question has been investigated about 1001 times. I have looked at numerous questions and answers, and tried them all. Updated the firmware on the router, changed the brightness settings on the iPad, tried it in Static on the iPad, Every solution that people threw out there, I have tried and it has been unsuccessful.
Has anyone else run into this and/or found a fix?

Some things to try first:
1. Turn Off your iPad. Then turn Off (disconnect power cord for 30 seconds or longer) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
2. Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
3. Change the channel on your wireless router (Auto or Channel 6 is best). Instructions at
http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
4. Go into your router security settings and change from WEP to WPA with AES.
5. Renew IP Address: (especially if you are drooping internet connection)
    •    Launch Settings app
    •    Tap on Wi-Fi
    •    Tap on the blue arrow of the Wi-Fi network that you connect to from the list
    •    In the window that opens, tap on the Renew Lease button
6. Potential Quick Fixes When Your iPad Won’t Connect to Your Wifi Network
http://ipadinsight.com/ipad-tips-tricks/potential-quick-fixes-when-your-ipad-won t-connect-to-your-wifi-network/
~~~~~~~~~~~~~~~~~~~~~~~~~
Fix WiFi Issue for iOS 7
http://ipadnerds.com/fix-wifi-issue-ios-7/
iOS 6 Wifi Problems/Fixes
Wi-Fi Fix for iOS 6
https://discussions.apple.com/thread/4823738?tstart=240
How To: Workaround iPad Wi-Fi Issues
http://www.theipadfan.com/workaround-ipad-wifi-issues/
Another Fix For iOS 6 WiFi Problems
http://tabletcrunch.com/2012/10/27/fix-ios-6-wifi-problems-ssid/
Wifi Doesn't Connect After Waking From Sleep - Sometimes increasing screen brightness prevents the failure to reconnect after waking from sleep. According to Apple, “If brightness is at lowest level, increase it by moving the slider to the right and set auto brightness to off.”
Fix For iOS 6 WiFi Problems?
http://tabletcrunch.com/2012/09/27/fix-ios-6-wifi-problems/
Did iOS 6 Screw Your Wi-Fi? Here’s How to Fix It
http://gizmodo.com/5944761/does-ios-6-have-a-wi+fi-bug
How To Fix Wi-Fi Connectivity Issue After Upgrading To iOS 6
http://www.iphonehacks.com/2012/09/fix-wi-fi-connectivity-issue-after-upgrading- to-ios-6.html
iOS 6 iPad 3 wi-fi "connection fix" for netgear router
http://www.youtube.com/watch?v=XsWS4ha-dn0
Apple's iOS 6 Wi-Fi problems
http://www.zdnet.com/apples-ios-6-wi-fi-problems-linger-on-7000004799/
~~~~~~~~~~~~~~~~~~~~~~~
iPad: Issues connecting to Wi-Fi networks
http://support.apple.com/kb/ts3304
How to Boost Your Wi-Fi Signal
http://ipad.about.com/od/iPad_Troubleshooting/a/How-To-Boost-Your-Wi-Fi-Signal.hmL
Troubleshooting a Weak Wi-Fi Signal
http://ipad.about.com/od/iPad_Troubleshooting/a/Troubleshooting-A-Weak-Wi-Fi-Signal.htm
How to Fix a Poor Wi-Fi Signal on Your iPad
http://ipad.about.com/od/iPad_Troubleshooting/a/How-To-Fix-A-Poor-Wi-Fi-Signal-O n-Your-iPad.htm
iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
WiFi Connecting/Troubleshooting http://www.apple.com/support/ipad/wifi/
How to Fix: My iPad Won't Connect to WiFi
http://ipad.about.com/od/iPad_Troubleshooting/ss/How-To-Fix-My-Ipad-Wont-Connect -To-Wi-Fi.htm
iOS: Connecting to the Internet http://support.apple.com/kb/HT1695
iOS: Recommended settings for Wi-Fi routers and access points http://support.apple.com/kb/HT4199
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Connect iPad to Wi-Fi (with troubleshooting info)
http://thehowto.wikidot.com/wifi-connect-ipad
10 Ways to Boost Your Wireless Signal
http://www.pcmag.com/article2/0,2817,2372811,00.asp
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
Fix Slow WiFi Issue https://discussions.apple.com/thread/2398063?start=60&tstart=0
How to Change Your iPhone’s (iPad’s) DNS Servers
http://www.macinstruct.com/node/558
How To Fix iPhone, iPad, iPod Touch Wi-Fi Connectivity Issue http://tinyurl.com/7nvxbmz
Unable to Connect After iOS Update - saw this solution on another post.
https://discussions.apple.com/thread/4010130
Note - When troubleshooting wifi connection problems, don't hold your iPad by hand. There have been a few reports that holding the iPad by hand, seems to attenuate the wifi signal.
Some Wi-Fi losses may stem from a problematic interaction between Wi-Fi and cellular data connections. Numerous users have found that turning off Cellular Data in Settings gets their Wi-Fi working again.
You may have many apps open which can possibly cause the slowdown and possibly the loss of wifi. In iOS 4-6 double tap your Home button & at the bottom of the screen you will see the icons of all open apps. Close those you are not using by pressing on an icon until all icons wiggle - then tap the minus sign. For iOS 7 users, there’s an easy way to see which apps are open in order to close them. By double-tapping the home button on your iPhone or iPad, the new multitasking feature in iOS 7 shows full page previews of all your open apps. Simply scroll horizontally to see all your apps, and close the apps with a simple flick towards the top of the screen.
Wi-Fi or Bluetooth settings grayed out or dim
http://support.apple.com/kb/TS1559
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

IPad Keeps Losing Wifi Connection??

Hi,
About 2 days ago, my iPad 2 began losing wifi connection. I would have to tap "Forget this network" and then wait a bit and then tap on the network again and type in the password. After that, the iPad would gain wifi again until about 5-20 minutes later, it loses wifi connection AGAIN. Sometimes when I did that it still didn't even work! And it also bothers me because it still has the wifi sign in the top left corner of my ipad screen, even if the wifi connection is not working. This has happened continuously throughout the past 2 days. Sometimes, the wifi would work for a good amount of time before it was gone again, and sometimes it loses connection after like 3 minutes. But all the other electronics in my house are perfectly fine, it's just my iPad 2 that's been doing this.
I tried to tap "forget all network settings" and then restart my ipad, but that didn't help. I'm not sure if it's the iPad's problem (since all the other electronics work) or if it's the wifi.
Please help! This is very annoying.
(And i have a new update which is 7.1.2, but that's been there for a pretty long time bc I always forget to update it. But I don't think that's the problem.)

Some things to try first:
1. Turn Off your iPad. Then turn Off (disconnect power cord for 30 seconds or longer) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
2. Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
3. Change the channel on your wireless router (Auto or Channel 6 is best). Instructions at
http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
4. Go into your router security settings and change from WEP to WPA with AES.
5. Renew IP Address: (especially if you are drooping internet connection)
    •    Launch Settings app
    •    Tap on Wi-Fi
    •    Tap on the blue arrow of the Wi-Fi network that you connect to from the list
    •    In the window that opens, tap on the Renew Lease button
6. Potential Quick Fixes When Your iPad Won’t Connect to Your Wifi Network
http://ipadinsight.com/ipad-tips-tricks/potential-quick-fixes-when-your-ipad-won t-connect-to-your-wifi-network/
~~~~~~~~~~~~~~~~~~~~~~~~~
Fix WiFi Issue for iOS 7
http://ipadnerds.com/fix-wifi-issue-ios-7/
iOS 6 Wifi Problems/Fixes
Wi-Fi Fix for iOS 6
https://discussions.apple.com/thread/4823738?tstart=240
How To: Workaround iPad Wi-Fi Issues
http://www.theipadfan.com/workaround-ipad-wifi-issues/
Another Fix For iOS 6 WiFi Problems
http://tabletcrunch.com/2012/10/27/fix-ios-6-wifi-problems-ssid/
Wifi Doesn't Connect After Waking From Sleep - Sometimes increasing screen brightness prevents the failure to reconnect after waking from sleep. According to Apple, “If brightness is at lowest level, increase it by moving the slider to the right and set auto brightness to off.”
Fix For iOS 6 WiFi Problems?
http://tabletcrunch.com/2012/09/27/fix-ios-6-wifi-problems/
Did iOS 6 Screw Your Wi-Fi? Here’s How to Fix It
http://gizmodo.com/5944761/does-ios-6-have-a-wi+fi-bug
How To Fix Wi-Fi Connectivity Issue After Upgrading To iOS 6
http://www.iphonehacks.com/2012/09/fix-wi-fi-connectivity-issue-after-upgrading- to-ios-6.html
iOS 6 iPad 3 wi-fi "connection fix" for netgear router
http://www.youtube.com/watch?v=XsWS4ha-dn0
Apple's iOS 6 Wi-Fi problems
http://www.zdnet.com/apples-ios-6-wi-fi-problems-linger-on-7000004799/
~~~~~~~~~~~~~~~~~~~~~~~
iPad: Issues connecting to Wi-Fi networks
http://support.apple.com/kb/ts3304
How to Boost Your Wi-Fi Signal
http://ipad.about.com/od/iPad_Troubleshooting/a/How-To-Boost-Your-Wi-Fi-Signal.hmL
Troubleshooting a Weak Wi-Fi Signal
http://ipad.about.com/od/iPad_Troubleshooting/a/Troubleshooting-A-Weak-Wi-Fi-Signal.htm
How to Fix a Poor Wi-Fi Signal on Your iPad
http://ipad.about.com/od/iPad_Troubleshooting/a/How-To-Fix-A-Poor-Wi-Fi-Signal-O n-Your-iPad.htm
iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
WiFi Connecting/Troubleshooting http://www.apple.com/support/ipad/wifi/
How to Fix: My iPad Won't Connect to WiFi
http://ipad.about.com/od/iPad_Troubleshooting/ss/How-To-Fix-My-Ipad-Wont-Connect -To-Wi-Fi.htm
iOS: Connecting to the Internet http://support.apple.com/kb/HT1695
iOS: Recommended settings for Wi-Fi routers and access points http://support.apple.com/kb/HT4199
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Connect iPad to Wi-Fi (with troubleshooting info)
http://thehowto.wikidot.com/wifi-connect-ipad
10 Ways to Boost Your Wireless Signal
http://www.pcmag.com/article2/0,2817,2372811,00.asp
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
Fix Slow WiFi Issue https://discussions.apple.com/thread/2398063?start=60&tstart=0
How to Change Your iPhone’s (iPad’s) DNS Servers
http://www.macinstruct.com/node/558
How To Fix iPhone, iPad, iPod Touch Wi-Fi Connectivity Issue http://tinyurl.com/7nvxbmz
Unable to Connect After iOS Update - saw this solution on another post.
https://discussions.apple.com/thread/4010130
Note - When troubleshooting wifi connection problems, don't hold your iPad by hand. There have been a few reports that holding the iPad by hand, seems to attenuate the wifi signal.
Some Wi-Fi losses may stem from a problematic interaction between Wi-Fi and cellular data connections. Numerous users have found that turning off Cellular Data in Settings gets their Wi-Fi working again.
You may have many apps open which can possibly cause the slowdown and possibly the loss of wifi. In iOS 4-6 double tap your Home button & at the bottom of the screen you will see the icons of all open apps. Close those you are not using by pressing on an icon until all icons wiggle - then tap the minus sign. For iOS 7 users, there’s an easy way to see which apps are open in order to close them. By double-tapping the home button on your iPhone or iPad, the new multitasking feature in iOS 7 shows full page previews of all your open apps. Simply scroll horizontally to see all your apps, and close the apps with a simple flick towards the top of the screen.
Wi-Fi or Bluetooth settings grayed out or dim
http://support.apple.com/kb/TS1559
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom
PS Make sure you have a good wifi connection when you update the iOS.

Problems using MBP as WiFi router for iPad2 (self-assigned IP address)

H/W& S/W:
MBP 15" (model early 2011), running Snow Leopard,
iPad 2 WiFi only, 64Gb, iOS 4.3.4 (8K2).
Scenario:
I am in a location where there is no WiFi. MBP is connected via Ethernet to a DSL network, and has access to the Internet. I turn on Internet sharing, having set the following:
"Share your connection from" set to "Ethernet" and
"Share computers using Airport" ticked.
Previously, I have then connected the iPad 2 via WiFi with the WiFi network created on the MBP, and succesfully worked from the iPad on the Internet (email, browsing, app downloads, ...).
Problem:
Now, however, the iPad connects to the MBP's WiFi network, but when I attempt to access the Internet, I get such messages on the iPad as "Safari is not connected to the Internet" or "Cannot Get Mail ...".
On investigation, I see that Airport on the MBP is in a YELLOW status: Status On, with the note "Airport has the self-assigned IP address 169.X.y.z, and will not be able to connect to the Internet".
On the iPad, the WiFi network shows the IP address 169.X.a.b (with a subnet mask (255.255.0.0).
I have tried:
1. turning Airport off and on
2. renewing the DHCP lease on the MBP
2. configuring IPv4 address in the MBP manually
3. configuring the IP address manually on the iPad (not expecting anything with this, but ....)
4. fixed Permissions" on the MBP disk (suggested on another support community web site)
But none of these make any difference.
Message was edited by: WKH
forgot to mention: Firewall is disabled on the MBP.

Hello,
I've had the exact same problem on my macbook and it really **** me off ! I tried all of the solutions written in this forum and none worked for me ! I was really starting get mad especially that my macbook is quite new...
And the thing is i have no Apple Store where i live which is a pretty F***g problem so I had to wait for vacations to go to france where I took my macbook for check at the apple store...
I just came back right now and my wifi works till now a least far much better than before...The guy was really nice he checked everything and he tried all the solutions on this forum too..Finally he tried to boot from one of '' apple's '' usb that has suberb booting systems...And it worked so finally he re-installed 10.6.5 as it was '' corrupted '' with wifi bugs ! For that he needed to delete everything on my macbook ! GREAT !
After 15 minutes the installation was done and it started like when you buy a new macbook !
And VOILA the Wifi came back to normal !
Hope this helps...
If you have this problem go and see Apple Store or re-install yourself 10.6.5 !
Thanks !

MBP losing WIFI when Airport doesn't

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