AirPort loosing connection

Hi,
I have a time capsule which works for backing up my data. I have configured two Airport Express units to connect to iTunes. When i connect through iTunes this works fine for 10 seconds then the connection drops out. The green light is still lit on the express unit.
When i come to my computer and run safari the connection is gone from the time capsule every time i wake the computer from sleeping. I have to go into network diagnostics each time to restart the connection. When i'm using the internet it just stops working after a few mins of no activity in safari.
Is there some setting somewhere about inactivity?
Please help as this is a very frustrating experiance for a new MAC user.

Don't know if you've solved your problem yet, but why not try DNS Changer Removal Tool available for free from http://macscan.securemac.com/

Similar Messages

Airport looses connection

Hi, My MacBook Pro is loosing airport wireless connection with the modem. I know there is a connection because I also have a PC. At times it doesn't see any wireless network, other times it sees the wireless connection but it times out after I put the password. Why is doing that? Any suggestion? Many thanks appreciated. bar

Ok.. the CG3000 is a model often used by our cable providers here.. although I seldom hear of it being used by Comcast or other US suppliers.
Try plugging the ethernet cord from CG3000 to a LAN port instead of WAN.. in bridge the TC doesn't care which port you use. That might help some.
The mini that is having issues.. what OS is it running??
If you run it with ethernet turn off wireless. Make sure ipv6 is set to link-local only in the ethernet setup on the computer.
No luck then it might take some more work because with your MBP working ok the issue seems to not be the TC but the mini.

Airport 5ft generation looses connection to my Wifi as range extender, why?

When I restart my Extreme it runs ok, after a minute or so it looses connection and cannot be found again by Apple my airport configuration program.
How is this possible and or what can I do to fix it.
Hans

Are you running Yosemite on a computer?? That has very limited ability to configure anything.
Use airport utility in iOS like ipad is much better.. get up close to the Airport Extreme to do it.
If you are attempting to extend range of non-apple router that is impossible .. so the AE might simply disappear.
You can only extend apple to another apple by apple. This is very inbreed.
If you have non apple router you will have to connect the two by ethernet.. or perhaps EOP adapters.

Wi-Fi loosing connection every few seconds on my macbook pro and its not my router's fault (running yoseomite)

Basically I bought my new Macbook Pro retina display in September 2014. My wifi was working perfectly well for about a month or two until Yosemite was brought out. I'm not sure if it was immediately after I downloaded Yosemite or not, but not long afterwards I noticed I was having trouble with my wifi (and not just mine but my schools as well). Every time my computer tries to join the wifi network it will work for a while (5 seconds) and it will say that I have a wifi connection but then it will just stop working and it will say I'm not connected to wifi. A few seconds later and it will then reconnect and say I have wifi. I am fairly certain this is not my wireless router ( a BT home hub) as I have other devices such as my iPhone and a computer which does not suffer these problems. After a while of it loosing connection and then gaining connection it will finally stop and the wifi icon at the top will suggest I have a wifi connection but when I hover over it, I see it says "Wi-Fi:looking for networks..." and then 2 seconds later it will say "Wi-Fi: On" and it will repeat like this for however long I am on the network. When the icon appears to suggest I have a connection I am able to load a webpage but it is slow and watching Netflix can be tiresome. I've scoured these forums for information that will solve my issue however all I have found is outdated information from 2010 or 2012 or too technical information that I can't understand. Does anyone else have this problem, has anyone else found a solution, it would be much appreciated if any one could help me solve t.

Please test after taking each of the following steps that you haven't already tried. Stop when the problem is resolved. Back up all data before making any changes.
Step 1
Take the applicable steps in this support article. The Wireless Diagnostics program generates a large file of information about your system, which would be used by Apple Engineering in case of a support incident. Don't post the contents here.
Be sure to test on more than one Wi-Fi network, if at all possible. A desktop computer can be tested with a mobile hotspot, such as the hotspot created by a cell phone. If the problem only exists on one network, then the access point of that network should be the focus of your attention, not the computer.
Step 2
Disconnect all USB 3 devices. If you don't know which are USB 3, disconnect all USB devices except keyboard and mouse.
Step 3
If you're not using a wireless keyboard or trackpad, disable Bluetooth by selecting Turn Bluetooth Off from the menu with the Bluetooth icon. If you don't have that menu, open the Bluetooth preference pane in System Preferences and check the box marked Show Bluetooth in menu bar. Test. If you find that Wi-Fi works better with Bluetooth disabled, you should use the 5 GHz Wi-Fi band. Your router may not support it; in that case, you need a new router.
Step 4
Open the Energy Saver pane in System Preferences and unlock the settings, if necessary. Select the Power Adapter tab, if there is one. Uncheck the box marked
Wake for Wi-Fi network access
if it's checked.
Step 5
Open the Network pane in System Preferences and make a note of your settings in the Wi-Fi service. It may be helpful to take screenshots of the various tabs in the preference pane. If the preference pane is locked, unlock it by clicking the padlock icon and entering your administrator password. Delete Wi-Fi from the service list on the left by selecting it and clicking the minus-sign button at the bottom. Then recreate the service by clicking the plus-sign button and following the prompts.
Step 6
In the Wi-Fi settings, select
Advanced... ▹ TCP/IP ▹ Configure IPv6: Link-local
Click OK and then Apply.
Step 7
Reset the System Management Controller.
Step 8
Reset the PRAM.
Step 9
Launch the Keychain Access application. Search for and delete all AirPort network password items that refer to the network. Make a note of the password first. Turn Wi-Fi off and then back on. You'll be prompted for the password when you reconnect. Save it in the keychain.
Step 10
Make a "Genius" appointment at an Apple Store, or go to another authorized service center.

Airport express connect to existing network problems

Hello everyone, my thanks in advance for any help you can provide. I know this issue has been raised in various forms both on this forum and elsewhere on the net, however no solution so far has worked for me.
I have been trying to add my airport express to my existing wireless network in order to extend wireless connectivity in my lounge room and provide airplay functionality to my stereo. Previously, with my last router and ISP i had the same setup working fine but now i cannot for the life of me get it working again.
I have BT infinty internet and am using a TPLink WR1043ND router in place of the home hub that BT supplies. My wireless internet connection is fully functionning and everything service-wise is fine.
I have tried to connect my airport express (n) to my network and all seems to go well but despite everything i try i always end up with an express with solid green light that is not recognised wirelessly by airport utility 6.0 or as an output option in itunes. If i connect the express to my MBP via ethernet i can access the express to configure manually but modifying the settings have thus far had no effect. The express is listed in the device list of the router menu and in the express settings has the correct ip issued via dhcp from router, as well as subnet mask and router address. Primary and secondary DNS have been copied from my router settings. Network mode is set to join existing network, correct wpa/wpa2 key is input, and airplay is enabled.
Despite all this seemingly being correct, when i disconnect ethernet connection betwein express and mbp - airport looses the express from ethernet connected devices (obvs) but when i select wifi connected devices it states no configured base stations can be found. The express remains listed in the dhcp client list of the router though and the express green light is there!
I have tried factory reset of the express a number of times and gone through the setup process and receive the same result. I have reset the modem, router, express and powered down the mac a number of times, still to be faced with same result.
I am at a loss and hope that you can help

Okay so i've fixed it....
Decided to bite the bullet and engage Apple support and although the agent i spoke to tried very hard he was as baffled as i was. In the end (after nearly an hour) i was put on to a support manager who simply told me that the Airport Express joining non-apple router hardware is just not supported. A very very disapointing cop out of an answer and a bit of a let down from Apple. So i expressed (no pun intended) my disatisfaction and left the conversation.
Determined not to be beaten i had one final go and lo and behold got it running. Problem was with the firmware on my router! After i updated to the very latest there now seems no problem with the Express.
It was an elementary mistake, i was trying so hard to fix the problem i forgot to check the basics!!!
Hope this helps anyone else who may be having the same difficulty

Set up Airport Extreme with 2 Airport Express connected by CAT5??

I recently bought an Airport Extreme base station and an Airport Express. My plan was to use to Airtunes with my AV receiver in my basement. Unfortunately, because the distance between these two areas is long (and separated by two floors) I'm not able to get a strong enough signal with the Airport Express to use Airtunes. I bought another Airport Express to put on the middle floor of our house but the signal in the basement was still not strong enough even with this addition.
I do have a way of connecting the middle floor of our house with the basement area by a CAT5 ethernet cable. My plan now is to connect the two Airport Express modules by their ethernet ports with this cable. The Airport Express on the middle floor connects with the Airport Extreme base station wirelessly without any problems. My question is what is the proper setup for the 2nd Airport Express connected by ethernet in my basement.
Airport Tech support said this could be done. They recommended setting up a new wireless network with the 2nd Airport Express by "fooling" into thinking it was connected directly to the router but using the same network name with a different wireless channel as my Airport Extreme base station. This setup actually works for several hours but then the Airport Express module that is connected to the Airport Extreme blinks amber. Interestingly the 2nd Airport Express with usually remain with the green light on.
Does anyone have any suggestions for the best way to set this up regarding network configuration with the Airport Utility?
Thanks

wmskaggs, Welcome to the discussion area!
They recommended setting up a new wireless network with the 2nd Airport Express by "fooling" into thinking it was connected directly to the router but using the same network name with a different wireless channel as my Airport Extreme base station.
That will work with as long as the AirPort Express (AX) is connected via Ethernet. The only other setting you need to make is to configure it to act as a bridge (not sharing a single IP address).
If this one looses connection, then something is wrong with the AX or the Ethernet connection (cable and/or connectors).

TC Looses connection to the Internet for wireless device & new Apple TV

I have a new TC (1 TB) that I got within the last month or two, I use it as my Internet router behind my DSL modem. TC gets a DHCP address from my DSL modem then does NAT to both Ethernet and Wifi devices behind it. After a short period of time I have noticed that my Wifi devices (New Apple TV, Macbook Pro, & 2 Iphones) will loose connectivity to the Internet, although they never loose their Wifi connection. What is strange is that I have several hard wired Ethernet devices that can still access the Internet going through the TC at the same time the wireless devices can not.
In order to get the wifi devices back working I have done a few things, disconnected and reconnected the Ethernet cable between the TC and my DSL modem, power cycled the TC, power cycled my DSL modem. It seems like the most reliable method is power cycling the TC.
This seems to happen pretty frequently however with no pattern or cause I can detect. The only interesting thing is that I just installed my New Apple TV and prior to that I do not recall having to recycle the TC. I am inclined to think the TCP video streaming might be overloading the TC and causing the wireless process to crap out while the ethernet ports are fine.
Any thoughts or comments would be appreciated. Will do some more troubleshooting and will contact Apple support at some point. I will also update this thread when I find out more.

I have a similiar problem - but I don't have Apple TV - and when the TC looses internet connection it is for wired and wireless devices. WLAN and LAN still working.
At the same time i cannot access the configuration of the TC thru Airport - are you able to do this?
I also have the feeling that high data loads provokes the error more often.

Internal Airport looses signal

I seams like my internal airport looses the wifi signal at times. In my neighborhood I can pick up up to 8 wireless signalss, however my Macbook Air does seem to keep the signals. What happens is when I first turn it on my signal is fine and the internet runs perfectly. Then all of a sudden my internet speed will come to a standstill. I go and check and instead of 8 signals i get 4. I go back and check 3 seconds later its down to 1 or 2 signals. I have a very erratic internet connection which is very frustrating. Any suggestions?

Hi Mark, and a warm welcome to the forums!
Sounds like a heat problem, Get Temperature Monitor to see if it's heat related...
http://www.macupdate.com/info.php/id/12381/temperature-monitor
And/or iStat Pro...
http://www.islayer.com/apps/istatpro/
If you have any temps in the 70°C/160°F range, that's likely it.

Loose connection while only using text chat

I realize there are allready a few threads on just randomly loosing connection, but seem to be fairly technical, and seem to deal with audio and video chats causing the trouble.
Sometimes not for hours but sometimes several times an hour i get that message "Lost connection with AIM, the connection to host unexpectedly lost." I know it does it everytime my computer goes to sleep, so now i set my computer not to go to sleep. After quite a bit of effort I changed my router and computers to static ip address. This helped alot with the entire network connection not being cutoff ( mail, safari) as often as it used to, but iChat still boots me off.
It also looses it connection sometimes and dosnt tell me. Ill be talking talking and realize the person I was talking to's messages havnt been displayed on my screen in like 5 minutes, and they havnt gotten the messages ive been sending. I find it strage that i can be typing and sending messages and iChat dosnt realize the other person isnt getting them.
My soulution to this problem is switch to offline then back to available and viola! it works. But it is socially awkward to not know if the person is not responding or if the messages just are not getting through.
I forwarded ports 5060, 5190, 5220, 5222, 5678, to themselves and 1384 to 16403. That didnt help (Not that I have noticed)
Im beggining to think the solution is go back to using AIM
And I had so much faith in my powerbook when i dropped over $2x10^3 on it.
Any suggestions that dont require alot of networking experience?
Is there any way to keep that dialogue box from poping up to tell me it lost the connection? I can see i lost it from my buddy list, and I hate that one extra mouse move and click to get back to the program (safari did this in panther when you were not connected, and i was so glad that it dosnt in tiger). Is there anyway to make it automatically try to sign back on like the FREE AIM software does?
The other problem related to this is iChat quits responding while trying to sign on. After loosing connection and sometimes when i first start the computer and try to connect the first time I get that spinning color wheel and it dosnt go away. Esc option apple does not work and i have to apple tab to finder then click the apple and select force quit to get it to stop.
Once again I had so much faith in this apple stuff Seems to me it dosnt work that much better than windows.
Thanks alot
Grey
By the way, Just before i submited this i got the connection alert for the second time since i started writing this post. And to submit this post i had to use force quit on iChat, then turn my airport off then on to get it going again.

Im not 100% on the networking vocabulary. Let me clairfy, In my router setting "DHCP server" is disabled. Im not sure if that means between the router and the cable modem or the router and the computers. But i do know that the router's ip is always the same 192.168.1.1
I dont know how to access the settings in the modem.
The only thing i did to change the ports is I forwarded ports 5060, 5190, 5220, 5222, 5678, to themselves and 1384 to 16403 in the router's advanced settings.
Thanks for trying to help me Ralph, sorry if i dont fully understand your questions.

Time machine loose connection to Time Capsule

I have recently purchased a time capsule and have failed to maintain a connection form a number of Mac to the time capsule for more than a couple of days before all machines fail to make connection.
The issue impacts all machines on the network at the same time. Easy fix is to power cycle the time machine.
The time capsule is used on a network to extend a wireless network created by an airport extreme which in turn has a single wired connection to an ADSL router (Netgear DG834G - that has the wireless turned off). The airport is running two different SSID one on 5Ghz and the other on 2.4Ghz to provide a 2.4Ghz wireless network for a Tiger iBook which due to an issue with Tiger and combined 5 and 2.4Ghz SSID. A tiger machine will kernel panic when using a dual frequency network. The time capsule extends on the 5Ghz SSID but does so on both frequencies. The time capsule has no wired connections and relies on the wireless traffic direct and via the airport extreme. The is also an airport express on the same SSID as the time capsule to provide connection to AV equipment.
Has anyone come across these symptons or know of any inherent issue with the configuration I have. The symptons look more like software/networking issues than hardware problems with the time capsule.
I have reviewed the logs from the time capsule and there is nothing unusual. The various machines show AFP logins and closing message as time machine goes about its work. When disk looses connection there will be no closing message for the AFP sessions. The can involve several machines having open AFP sessions with the disk fails to respond.
There are "Connection accepted from" IP6 address which are strange given that there should be no IP6 on the network. Both the Airport Extreme and Time Capsule have IPv6 setting as link-local only.
All machines with the exception of the Tiger iBook are running 10.7.2.

There is a networking bug between the TC and lion in particular although it can affect SL as well. The latest update to the TC fimware made it worse.
https://discussions.apple.com/message/17118907#17118907
Read the thread backwards as we developed better understanding of the issue.
As you can see there is some inability to maintain sessions.
The other bug is the loss of the dhcp info. ie the Mac has lost the link between the TC IP address and its name.
Your wireless setup will make it more difficult than most.. but try and lock the IP of the TC.
Unmount the TC in finder.. and remount it from menu, go .. go to server.. afp://ipaddressofTC
If the IP address is locked then this may help.. until Apple work out some better networking.

Can airport extreme connect using a mac mini. the base station is not recognized so i cannot configure it manually

can airport extreme connect using a mac mini. this airport extreme wont connect to internet via my cable modem. I cant set it to bridge mode because it doesnt appear as a base station in airport utitlity...help

First, is your AirPort Extreme Base Station (AEBS) a 802.11n, 802.11g, or 802.11b model? Second, what is your primary goal for using this base station? Finally, is the AEBS the only router in your current network configuration?

I've had a new hard drive installed and reloaded all my stuff via time capsule and now can't connect to the internet although it say Airport is connected. How can I fix this problem ?

Just had a new hard drive for my iMac and reloaded all my stuff via time capsule, all works fine apart from Safari which won't connect to internet. Airport is connected but each time Safari comes back saying there is no connection....any help gratefully recieved.

So you have the apple rotuer called a time capsule and you have complete the frist time machine back up? but there is not internet access ?
If so.
Opem airport utiltiy on your Comptuer :
What is the IP ? > if its 169.254.xx.xx > its a self assigned
Try power cycling the Internet source for up to 1 mintue and make sure all the lights turn off.
In Airport Utility Version 5.5.3 / 5.6.1
Gi > Intenret > conncetiong sharing > Is it off bridge mode change it to share a public Ip address
In airport Utility version 6.0/6.1
Edit > network > rotuer mode : Should be DHCP and NAT unless you use PPPoE to conecnt to the internet then this is automatically invoked.

Airport Extreme Connected to Internet, Yet No Longer to Powerbook G4

Airport was connected over a cable modem to the internet just fine until last night.
It stopped working--no browser or email.
I can still connect fine directly from the cable modem though.
Internet Connect seems to think I have a strong connection, but my applications (browser, emails) disagree.
I've been accross the internet and back trying to solve this.
I've tried:
a) Apple>System Preferences>Network shows:
"Airport is connected to the network <<my network name>>. You are connected to the internet via AirPort"
b) Apple>System Preferences>Assist me>Assistant
(or Applications>Utilities>Airport Setup Assistant) shows:
"Congratulations! Your Airport Extreme is configured to connect to the Internet and share a USB printer. If you use a cable modem to connect to the Internet, you may need to turn the modem off, wait a few seconds, and then turn it back on."
Internet Connect then, still, shows a strong signal level and status reads: "Connected to <<my network name>>. Connected to the internet via Ethernet."
c) Apple>System Preferences>Assist me>Diagnostics:
Airport works
Airport Settings = failed
It then wants me to reboot the device (i.e., I think, the modem or whatever else isn't sending a singnal to the computer).
I tried this but again, the modem works fine .... it seems to be somewhere between the PowerBook and Airport Extreme that is the problem.
d) I've tried with no success downgrading from Airport Extreme Firmware V5.6 to V5.5.1
e) With no success I've reinstalled from CD the Airport Extreme software V4.2
f) With no success I've selected "Enable interference robustness" thinking perhaps another network in the building was interfering (airport seems to recognize another airport but iStumbler doesn't seem to).
g) I've messed with Apple>System Preferences>Network>Configure so much now that if there was anything that isn't broken, it probably is now.
I've taken a crash course in AirPort over the last 24 hours (and failed) and have soft (5 seconds) and hard booted (30 seconds?) this thing so many time .... I'm ready to, you know, boot it out the door next (it has a nice aerodynamic shape I've come to really appreciate in the last several hours).
I know there is something I'm doing wrong, overlooked, or haven't tried.
Any thoughts????
Thanks in advance,
Jayson
PowerBook G4 17" Mac OS X (10.4.3)

Jayson,
It sounds like your airport needs to be changed to no longer distribute IP addresses the way it is currently set to do. Go to the airport setup, make note of settings as you go (shift + command + 4, select area with "crosshair" cursor and let go to make a pdf of the screen, selected area, print the pdf in PREVIEW if you want to save yourself the time writing them down!), and MAKE SURE YOU ONLY CHANGE WHAT YOU UNDERSTAND and are sure of. Sorry for yellin'!
In the airport settings (sorry, I'm retrieving from my organic grey/white matter memory here), I believe there is a place in the internet tab for changing the APX to no longer distribute IP addresses, or to share single IP's, etc. If you wish, try to see if toggling off the distribution, rebooting (not resetting) devices, and starting up the computer allows a "tunnel" through the modem.
Many cable/DSL modems are firmware-set to ALSO distribute IP addresses, so the two devices (modem and airport) are constantly sending packets back-and-forth, handshaking endlessly and the most recently "shaken hand" is the device distributing addresses.
The problem arises here (or, at least this is one case I am describing in which your symptoms match up closely) since your computer sees the packets, the web traffic and "open door," etc., but it is somewhat like thinking a window is a door. You can see out of it, verify the "door" by looking outside, but the lock is on the OUTSIDE (the modem), locking you in, with your airport sitting idly and thinking that you can get out since it is essentially letting you have a distributed IP address...it's all rather like the mom from "Carrie" or something...you and your dirty pillows. Stay inside the closet for now-- yeah, right.
If shutting of distribution in your airport still allows the computer to connect as wired to the LAN port and your modem still plugged into the airport's WAN port (after saving airport settings and rebooting all devices, computer LAST, airport a few minutes after the modem), you are even more likely to be in this aformentioned battle of the handshaking devices.
If so, find out from manuals/manufacterer's online notes/good state-side non-Apple tech help (and other fictional situations) if the cable modem can be set to not act like a router, and more like a modem by just giving one DHCP address, or static address if you must, and not conflicting with a router. Don't say airport unless you must-- so many tech-help places quote the crapola cop-out that Apple isn't compatible or something. Most of the time, cable modems only require the fairly universal web packet compatibility, and the mac/airport does the rest. Very few modems, especially from a large broadband provider, will prevent you from using an airport or a mac. The few I have seen were firmware issues with older, rather ready-to-be-shot DSL modems that should have been doorstops or clay pigeon surrogates a long time ago.
If you can play around (with guidance) and reset the modem to simply get an IP, send it to the router (that is, the airport), and then let the airport do the distribution, all you have to do is switch the airport back to distributing a range of addresses-- I like the 10.0.1.x selection, but I find the last of three choices (something like 169.x.x.x) to occassionaly be the magic x-factor bullet from Narnia that makes the bells ring and your airport finally wired AND wireless.
Before you heed any "advice" I may be stating, do some googling regarding the topics I mentioned, since NOBODY is all-knowing or perfect in ANYTHING, and I don't want your problems to be worse. Exhaust all other sources of information that you may have, but the above prattling was from my troubleshooting an endless stream of constant problems with a similar setup, and it may help you. Reply if you wish and I'll add more if you want.
Sorry if I'm writing like a monkey *(&%% a football on an icy pond. I'm juggling a few upgrade jobs on my workbench, and listening to the new INXS album from itunes, so I'm a little geared up. BEST OF LUCK! Happy holidays, whatever they may be for you.
Likkimon

How can I get airport to connect automatically to wireless network?

I temporarily switched from a DSL internet provider to a cable provider, and then back to my old DSL Internet provider. My g5 iMac computer connects to the network through a wireless Belkin router.
Since I switched Internet providers, every time I turn on my computer, it no longer automatically connects into the wireless network. Instead, to connect I now have to manually select the network.
I'd really appreciate tips on automating this step. My kids use this computer and due to parental restrictions, they do not have rights to connect to the network.

Hi there,
Strictly speaking changing how the internet is coming into the wireless router should not affect the wireless and how machines connect to it, but however to get you out of a hole I would say create a new Location for your home and start again.
Basically,Disable your wireless first, then in your network settings there is a drop down box at the top of the panel where you can change and create new locations. Create a new one, then select it and click Apply. Now enable your airport and connect to the wireless, once that is done you should be good to go.
Hope that helps,
Callaghan001

Printing to Airport Express connected Laserjet 1012 very slow after update to 10.6.8

After updating a pair of computers that we have here to 10.6.8, printing to our Airport Express connected HP LaserJet 1012 has become incredibly slow. I timed it and it is taking 2:30 to print a blank page, whereas printing the same blank page under 10.6.7 (on an external drive connected to the same MacBook Pro) happens within 2 seconds. One thing that I have noticed is that when I bring up the HP Printer Queue the computer says 'connecting to printer' for 20 - 30 seconds, then sits at 50% complete on the printing for some time - anyone else running into similar problems?

Because I am not experiencing the same issue I have not needed to apply the CNET article. But just to be clear, did you follow the instructions to the letter?
If you did and it's still not working then you can begin narrowing down where the problem is by following some basic trouble shooting steps. First thing I'd try is creating a new user account (call it TEST ACCOUNT) and leave it alone, then try printing from that account. If it works then you know it's a software issue in your normal user account. If it still doesn't work then what I'd do is:
1. Download 10.6.8 Combo Update at http://support.apple.com/kb/DL1399
2. Disconnect all peripherals (including the printer)
3. Backup using both Time Machine and/or a Bootable Clone using SuperDuper or Carbon Copy Cloner
4. Restart from the Bootable Clone or the Snow Leopard install discs.
     a) choose language
     b) Click Utililities Menu
     c) Disk Utility
     d) highlight the internal HD and the First Aid tab
     e) Repair Disk Permissions, Verify Disk & Repair Disk.
     f) exit Disk Utility and restart in Safe Mode
5. Install the Combo Update
6. Restart normally and test the system
7. Begin connecting peripherals one by one and testing each.

AirPort loosing connection

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