OS X V10.7 Lion :: IMAC 21" WIFI Failing After 10.7.4 Update
May 15, 2012
Before the 10.7.4 update the WIFI connection from the iMac 21.5" to the airport extreme router works fine!
Now it's failing several times a day! it looses the wifi connection and you are unable to see any wireless accesspoints or SSID's
Macbook pro, iphone & ipad + PC's still works fine!Â
The only way to get the wireless up and working again is to shutdown and restart the iMac.Â
In the log i can see alot, don't know if this is some clue or error occuring just after the wireless connection is dropped for unknown reasons.Â
"kernel: 2329.723808: ath_chan_set: unable to reset cannel XX (XX00Mhz) flags 0x10080 hal status 17"
"kernel: 2632.354892: ASSERT: Can not reenter VAP State Machine"
"kernel: AirPort: Link Down on en1. Reason 8 (Disassociated because station leaving)."Â
Turning off and on the wireless interface only shows the following in the log, and the wifi will not see any SSID's : "kernel: 71847.200440: switchVap from 1 to 1" Â
Info:
iMac, Mac OS X (10.7), 2011 Model i5 - 16GB - AMD 6770M
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May 28, 2012
I just updated my (brand new) iMac to OS 10.7.4 and now I can't download the wi-fi update V1.0 which fixes the issue of not reconnecting to wi-fi network after computer wakes from sleep.
Info:
iMac (21.5-inch Mid 2011), Mac OS X (10.7.4)
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May 10, 2012
Update 2012-002 on macbook pro. When rebooting,after 'successful' install, I now see a repeating cycle of Error = 19, unable to mount root. From my *nix perspective I fear the worst - that the boot sector (at a minimum) is hosed. I tried (running Lion 10.7.x) booting with the command key down - no joy. do not currently have my install disk (sadly, it's in storage, somewhere). I'm concerned about this. this is VERY unusual for an update. This is a relatively new drive (750GB drive installed about 8 months ago). At no point have I seen errors, and believe me, I look. Assuming the worst case is repartitioning? (ah for hte days of 'fdisk /mbr')
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MacBook Pro (17-inch Core 2 Duo), Mac OS X (10.7.4)
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Jun 19, 2014
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I sync between the mobile devices and iCloud without problems (Mostly Calendar & Notes). Over the last year I have had occasions when my Mac Calendar failed to update with the message "The server is currently not reachable or the connection was blocked). Sometimes the problem went away and Calendar resumed normal syncing. It has been off-line now for 2 weeks.
I have deleted and recreated the icloud calendar in Calendar >Preferences>Accounts. I have unchecked Calendar in System Preferences>Mail, Contacts&Calendars>iCloud and rechecked it. I have created a Google calendar as a test and it is being imported and displayed by Calendar on my mac.
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Jun 12, 2012
I am using at home an iMac connected ( with cable ) to my Home WiFi Router. All other products are using the same WIfI home network ( Without a cable ).Can I define my iMac to use ONLY MY HOME WIFI instead of other unwanted wifi networks ?
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iMac, Mac OS X (10.7.3)
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May 5, 2012
it is possible to generate a good wifi signal with my new imac which will allow mw to connect to the net with my wifi ipad2?
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iPad 2
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Jun 2, 2012
After Update 10.7.4 i have problem with WIFI. It´s always off to start it on i must reboot my computer. Why?
Info:
iMac (27-inch Mid 2011), Mac OS X (10.7.4)
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Jun 10, 2012
Wi-fi was working perfectly all they way till I ran the latest update 10.7.4. Â
Now when I do a cold shut down, the wi-fi on the top right hand corner is blank. Cannot do anything to turn it back on. I always try to turn on, but fail. Â
Basically, it comes down to restarting the computer and praying that the wi-fi signal comes back on. Sometimes, I have to do a cold restart and it seems I'm playing a gambling game. Maybe after 3-4 times the wi-fi signal will become normal again. Â
This has been happening for about a month. Yes, I'm just getting around to complaining. I did not do time machine, so I cannot go back before this happend. Either, I do a whole another system install or there is a patch I could get. Â
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May 9, 2012
After I did the 10.7.4 update on my mid-2010 macbook pro core i7 this evening, my wifi adapter/internet is not working, it is grayed out and says "no wifi hardware found". I have re-booted my machine 4-5 times but that did not help.Apparently, if I boot into recovery partition via holding Cmd+R > there my wifi is working and is properly connected. Infact, I am writing this message through that receovery partition safari window connected to wifi just fine.Another weird nothing I noticed is if I boot into the Safari-only Guest User account, there also wifi is working just fine, no problem.However, in both of my user accounts, it is giving me this "no wifi hardware found" error and won't connect to internet. In fact, ethernet wasn't working as well in user accounts.
Info:
MacBook
Pro, Mac OS X (10.6.7), 8GB, 500GB, core-i7, late 2010
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May 24, 2012
Equipment: iMac 21.5" 2.5GHz Quad Core i5 Â
Internet Set-up: Cable modem to iMac EthernetÂ
Problem: After recent update to Lion 10.7.4, my Wi-Fi signal via Internet Sharing keeps dropping. Have multiple iDevices failing that were working perfectly with 10.7.3 (Nook and iPhone 4). iPhone shows full Wi-Fi signal strength and works for a short time after reset (via Wi-Fi off/on, Internet Sharing off/on). Continues to show full Wi-Fi signal strength but loses connection after 1-2 minutes. And not just internet connection; I can't transfer pics/vids from iPhone to iMac either. Have switched to a channel no one nearby is using (channel 9) to no avail.
Info:
iMac, Mac OS X (10.7.4)
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Jun 21, 2012
My computer won't upadate after multiple tries. Also, I bought Microsoft Offic for my Mac at the Apple store and it is failing to install.
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MacBook, Mac OS X (10.6.8)
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Apr 6, 2012
I have a Mac Mini/Snow Leopard 10.6.8 10K549. I am trying to run Software Update and it is failing to install the Software Installer Update 1.0. I have run Disk repair and Repair Permissions including booting standalone CD and downloading the update - but just keep getting "An Error has occurred".
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Feb 12, 2012
for the last few days my wi fi cuts out. If I go to the diagnostics it turns back on. It says that my network configurations have changed but then allows me to access it. But the next time I go to use it it has gone again.
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Mar 23, 2012
I have an iMac running Lion hardwired to an internet connection and want to create a wifi network from this connection I have gone to 'create network' and set up - all seems fine. I have then tried to connect to this network with my iPhone. The phone recognises the network and it looks as though it has connected as it is ticked in the networks, but unfortunately it hasn't as my phone won't connect to the internet.Â
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Apr 7, 2012
After installing Mac OS Lion my iMac will not stay connected to wifi. I've read numerous discussion strings and this problem is pervasive with OS Lion. Apple needs to address this ASAP! Is there an answer discovered in the last few days?
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Lion OS, Mac OS X (10.7)
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Apr 7, 2012
My brand new iMac will not stay connected to wifi. When I try to open Safari it says a wifi connection does not exist. When I diagnose the problem it connects to my wifi before I even get a chance to choose a wifie network to diagnose. This happens every single time.
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iMac, Mac OS X (10.7.3)
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Apr 18, 2012
I keep getting message saying I need to do this!??
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Mac Pro, Mac OS X (10.7.2), Numbers spreadsheet formulas
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Apr 29, 2012
Randomly, my computer seems to be disconnected from my wi-fi network. It is not a routeur problem since every other devices still work when the computer doesn't.
iMac late 2009 (first 21.5" generation)Â OS X Lion 10.7.3
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iMac (21.5-inch Late 2009), Mac OS X (10.7.3)
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May 23, 2012
I'm currently running on Mac OSX 10.7.4. Access to my NAS via wifi is very slow as compared to accessing it via Windows. I've tested with both AFP and CIFS but both are equally problematic.
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iMac, Mac OS X (10.7.4)
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Mar 22, 2012
Since installing Lion I lose my wireless internet connection frequently - only from the IMAC, not from the IPAD or Dell. I called support and after quite a lengthy "try this" session, I was told that this was a known problem. I can always get it back but sometimes have to unplug the router.
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iMac, Mac OS X (10.7.3)
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Apr 3, 2012
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iMac
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May 26, 2012
My brand new imac randomly disconnects from the internet. We have a BT hub - wifi. I have googled this issue and see that it is relatively common and it is incredibly frustrating. It is fairly simple to reconnect each time but it is driving me mad having to. It generally happens when the computer is asleep but sometimes in the middle of doing something.
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iMac
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Apr 22, 2012
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iMac, Mac OS X (10.7.3)
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May 6, 2012
Every time my mac goes into standby the wifi connection needs to be manually joined, so trying to connect remotely is impossible without joining a wifi network manually.
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iMac, Mac OS X (10.7.3)
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May 11, 2012
I have just purchased a new IMAC and it will not pick up Wifi from my home router/modem. I have called my provider and they think theres something wrong with the computer as even in network the splat beside the wifi is yellow not green??
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iMac, Mac OS X (10.7.2)
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Jul 3, 2012
This problem never happens with my MBP - and it is running a CCC Clone of the same 10.7.x system. But whenever I restart my iMac 20.5" it never automatically connects at startup. I always have to touch the wifi symbol in the menu. After that I don't need to select my home network - it will then find it and connect. But until I do that it doesn't connect. This has happened ever since I've gotten this iMac. Also annoying is that the sound output upon startup always defaults to my Logitech headset regardless of how I left it set in Sound settings.Â
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iMac (21.5-inch Late 2009), Mac OS X (10.7.3), 12 GB RAM, also MBP late 2006 +....
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Sep 1, 2014
I have a Brother MFC-9340CDW WIFI printer which my iMac says it can't find sometimes when I want to print. I think I have narrowed the problem down to when my MacBook Air is on at the same time and using WIFI on the same network If I turn off WIFI on the MacBook I can print from my IMac. I am not sure if it is a router problem or what but we use the iMac and MacBook Air at the same time quite often. Checked on the Brother website - nothing.Â
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iMac, OS X Mountain Lion (10.8.5)
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Jul 13, 2010
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Mar 21, 2009
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So I decided to run TechTool Deluxe and see what happened. My iMac did great until the Volume Structure. I repaired it a good five times. The last two times it couldn't find anything to fix and it is still failing!
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May 7, 2009
I just got a new WD external drive to put some media files on. I went into disk utility just to make sure the external was working fine before I started moving things over and it told me my internal hard drive in my 08 iMac is failing! Good thing I bought the external when I did,
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