Lose Wifi after return from in Mountain Lion

Ever since I installed Mountain Lion on my 2011 27" iMac, I lose WiFi connection after returning from sleep and I Have to do a restart. Not happy.

http://osxdaily.com/2012/08/02/fix-os-x-mountain-lion-wireless-connection-proble ms/

Similar Messages

All my Photos disappeared after I saved a photo from an email from my wife. I am running Mountain lion on Mac book pro 2012, help. What did I do wrong?

All my Photos disappeared after I saved a photo to Iphoto from an email from my wife. I am running Mountain lion on Mac book pro 2012, help. What did I do wrong?

Apply the two fixes below in order as needed:
Fix #1
Launch iPhoto with the Command+Option keys held down and rebuild the library.
Since only one option can be run at a time start with Option #3, followed by #4 and then #1 as needed.
Fix #2
Using iPhoto Library Manager to Rebuild Your iPhoto Library
1 - download iPhoto Library Manager and launch.
2 - click on the Add Library button, navigate to your Home/Pictures folder and select your iPhoto Library folder.
3 - Now that the library is listed in the left hand pane of iPLM, click on your library and go to the File ➙ Rebuild Library menu option.
4 - In the next window name the new library and select the location you want it to be placed.
5 - Click on the Create button.
Note: This creates a new library based on the LIbraryData.xml file in the library and will recover Events, Albums, keywords, titles and comments. However, books, calendars, cards and slideshows will be lost. The original library will be left untouched for further attempts at fixing the problem or in case the rebuilt library is not satisfactory.
OT

My wifi network is 802.11n but there are times changing for 802.11g, and have to restart ... after the update for Mountain Lion

My wifi network is 802.11n but there are times changing for 802.11g, and have to restart ... after the update for Mountain Lion... Help!!!
Several problems with Mountain Lion, APP STORE (login/logout error), WIFI(802.11n for 802.11g), MAIL (horrible)... Apple, what is happening?

Do a factory reset .. nothing will be deleted from your backups and you will be able to get access to them again.
The Factory Reset Gen1-4.
Unplug your TC. Hold in reset. and power the TC back on.. without releasing reset for about 10sec. When the status light flashes rapidly; release it.
Be Gentle! Feel the switch click on. It has a positive feel.. add no more pressure after that.
TC will reboot after a couple of minutes with default factory settings and will wipe out previous configurations.
No files are deleted on the hard disk.. No reset of the TC deletes files.. to do that you use erase from the airport utility.

Can someone pls help me with java on my macbook pro because after i download the mountain lion java has died and i need java to see streaming quotes from stock market

can someone pls help me with java on my macbook pro because after i download the mountain lion java has died and i need java to see streaming quotes from stock market

Java is no longer included in Mac OS X by default. If you want Java, you will have to install it.
However, note that you should think twice before installing Java for such a trivial need as looking at stock market quotes. There are other ways to get that information that don't involve Java, and using Java in your web browser is a HUGE security risk right now. Java has been vulnerable to attack almost constantly for the last year, and has become a very popular, frequently used method for getting malware installed via "drive-by downloads." You really, truly don't want to be using it. See:
Java is vulnerable… Again?!
http://java-0day.com

HT4628 My macbook pro will not automatically reconnect to the wifi after a sleep. This has started after having upgraded to mountain Lion (10.8).

Hi
After I have installed Mountain Lion (10.8) - my macbook pro will not connect automatically to my preferred wifi network. It used to do that on the previous versions. It seems that the mac does not recognize the preferred network, as it asks me to choose a network after evey sleep/restart. I have modified the network preference to have my preferred netwrok at the top of the list. I have tried with/without checking the "ask me before joining a new network". It still behaved the same.
Thanks
Eitan

Try making a new network connection and renewing the DCHP lease as detailed here:
fix-os-x-mountain-lion-wireless-connection-problems

After I upgraded to OS X from OS Mountain Lion my notification is not working or showing on my menu bar. Please help

After I upgraded to OS X from OS Mountain Lion my notification is not working or showing on my menu bar. Please help

Hi Gimmemar,
That does sound frustrating, to not have your iPhone 4s recognized by Image Capture or iPhoto. The article linked below has a lot of great information and some troubleshooting tips that you may not have tried already, which will resolve most issues like this one.
iOS: Unable to import photos to computer - Apple Support
Cheers,
-Jason

Time Machine Backups after recent upgrade to Mountain Lion

Basically to keep a long story short - i need to take my computer in for repair tomorrow. I recently did an upgrade to Mountain Lion a day or two ago. I haven't done a Time Machine backup until today (a couple days after i upgraded to Mountain Lion) because i wanted to make sure that my previous TM backup (Snow Leopard 10.6.8) was the most up to date and best update that i could revert back to if i had any issues with Mountain Lion, or any application compatibility, etc etc.
I don't have any broken applications and it seems like Mountain Lion is running better than Snow Leopard. However, as i said - i'm taking my computer in for repair tomorrow, i would like to know that i have the most up to date Time Machine backup with the new Mountain Lion so that when i restore it back from my Time Machine backup after i get it back from repair, i won't have any issues with the migration, which could potentially lead me into more technicalities.
I have a 500GB Harddrive, with about 70GB left of free space....I did the initial backup prior to upgrading to Mountain Lion, and it upgraded 400+GB of info, now, since Mountain Lion - the first backup with Mountain Lion initially said 46GB - then it went down to 14GB by the time it was all said and done....so what exactly did it back up?
Did it back up all the necessary files to keep Mountain Lion running smoothly when i restore it back to the way it was after i get it back? Did it not back everything up that it needs to? Is it safe to erase my internal drive and do a clean installation so i can take it in, and not worry about not being able to migrate things back over or applications not working correctly?
When i get it back, i presume it will come with Mountain Lion back on it and i can just boot up into the Recovery Disk and restore it from a Time Machine backup that way, correct?
Thanks for the help.
- Jason

I received the same error and experienced the same issue that you have described but after performing a Time Capsule soft reset and then toggling the TM Off and then back On I was able issue a backup now and see my previous backups.
Here is the link to where I posted my fix; https://discussions.apple.com/message/19069543#19069543. Someone else had success using a different method. The only comment / complaint that I have since the ML OS X upgrade is that TM now takes at least 20 to 30 seconds before I can click/select a backup.
I hope this helps.

After recent update to Mountain Lion, trash won't empty completely; says "item" inuse

After recent update to Mountain Lion, trash will not empty completely. Always an item left in trash, and I get message that the "item is in use." Right now, using app Trash it! to get rid of that left behind item.

Try rebuilding Trash and see if that sorts it...
Launch Terminal and copy & paste these commands:
Go to /Applications /Utilities/Terminal and launch it.
At the prompt, copy and paste this command
sudo rm -rf ~/.Trash
Press Return.
You will be asked to enter your admin password. It will be invisible.
Enter it and press Return.
Log out and back in or restart.
Let us know.

Network issues after returning from sleep mode

I'm noticing this issue on T440, Twists, T420s, whether it's Windows 8, Windows 8.1 or Windows 7. Sometime around the end of last year and the beginning of this year, my users suddenly started reporting problems with the machines after returning from sleep mode. The network adapter (whether plugged in or using wifi), would show limited connectivity and would not connect to the internet until the machine is rebooted.
I've tried updating drivers, using system restores, disabling the network adapters from shutting down to conserve power, OS network diagnosis & network adapter resets, none of which has worked. Hibernation is disabled on all machines.
The only fix I have is to reinstall the OS over the top of the system and reinstall all updates. Looking for help with this issue.
Thanks!
Solved!
Go to Solution.

Hi Mertz74,
Thank you for replying us back!
Please check with uninstalling power manger and reinstall it with latest driver.
Download chipset driver from Lenovo drivers page and install it.
Please check with above option to resolve the issue.
Below is the link to enter the downloads page and download updates accordingly, please click on "Select Product" then in "QUICK PATH" enter the MTM no. select the exact model.
http://support.lenovo.com/en_US/downloads/default.page#
Hope this helps. Do post back if issue persists!
Best regards.
Hemanth Kumar
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
Follow @LenovoForums on Twitter!

My macbook pro starts to pop after I upgraded to Mountain Lion, what can I do?

Hi guys,
As the title said, my MBP 13" late 2011 starts to have popping sound coming out from speaker a while ago.
It just pop every few minutes and I am very worried.
I did a few research and it seems like there's something to do with the hard disk.
note that this happened right after I upgraded to Mountain Lion.
comfort me!!!
Thanks for helping.

Hey Samuraijin
/Hug to start with
Well when you did the upgrade the OSX ML uses your drive alot. As you said the popping sound from your research its comming form the drive. if that is the case. Check your disk with disk utitlities just incase too see if the drive is still ok. If its all Green your good if its red it might need replacement.
Note that Popping sound is usually a hardware problem or optical audio problem when using external speakers. instead of internal ones so becareful. My advice would be too be let it slide still the next patch if disk utilities says your drive is fine (Usually after 2 weeks of main realese). After that if its still there you have to get the puppy in for a checkup.
Hope i was able to comfort you in some way

Browser not connecting after returning from sleep, but email and imessage working fine

My Browsers are not able to access the Internet after returning from sleep. This effects other browsers (Firefox & Chrome) as well. The connectivity from mail and iMessage is working fine. I am also hardwired and not using WiFi.

I have the same problem since updating to Yosemite, works fine after restarting but once it goes in to sleep it affects email as well as browsers, I have a broadband connection. Also accessing the app store is hit and miss, it's either working or simply not not working.
It also affects other devices trying to connect to the internet over wifi via the airport time capsule, the problems started after installing Yosemite.

After downloading OS X Mountain Lion, my mac has become very slow

After downloading OS X Mountain Lion, my mac has become very slow and takes a bit to shut down programmes. What can i do to bring it back up to the speed it was when i had OS X Lion

LouieAustin wrote:
After downloading OS X Mountain Lion, my mac has become very slow and takes a bit to shut down programmes. What can i do to bring it back up to the speed it was when i had OS X Lion
Though I wish it were true, it is unrealistic to put 200+ new features into OS X and expect Mountain Lion to run faster and more efficient than Lion on the same hardware. I moved up from Lion to Mountain Lion. Mine is slowing down, but not very slow, as you mentioned. Safari and Mail are simply swine on launch. Check the following:
Patience. If you are impatient and detail alters your mood, take your MBP to the Apple Genius bar.
CPU. If you have a supported, but older MBP, your CPU may be showing its age.
Memory. 4GB or 8GB in your MBP? Mountain Lion drinks more than Lion and if you run multiple large memory footprint applications, 4GB will be a performance bottleneck. My HD3000 graphics takes 512MB. Check the System Information report for your memory. Is it OK?
Compatibility. Sometimes, hardware peripherals and applications are not entirely compatible with a new OS release, and divert OS performance to system log entries. A symptom is a large (> 2GB) system log file at /var/log/system.log. I just discovered a bad USB hub this way. Unplug everything and evaluate your performance again. Zero [ # > /var/log/system.log] the log file if you have the permissions.
Permissions. Launch Disk Utility and verify/repair Disk Permissions on your Mountain Lion disk. While there, might as well Verify Disk too.
Preferences. Sometimes, older preferences do not play well with upgraded application compatibility for a new OS release. It might be worthwhile to delete the specific preference and its lock file from Lion.
Caches. As routine, just before I shutdown the system, I will move the contents of /Users/name/Library/Caches to the Trash. I tolerate Adobe Flash and use their preferences panel to delete all Flash content. Then on reboot, I delete the Trash. Application performance improves as a result.
File Directory. Everytime that I upgrade OS X and run the retail Disk Warrior 4.4, it reports 25% storage fragmentation. Repairing and rebuilding the File Directory always restores noticeable I/O performance.
Storage. If within your budget, upgrade to an SSD. Otherworld Computing has MBP SSD solutions.
Applications. Some non-Apple applications may need recompilation for Mountain Lion, or behavior may be questionable. I compile my own MacVim editor from github sources. The same 64-bit binary that was compiled with XCode 4.3 on Lion, misbehaved on Mountain Lion. Rebuilt it with XCode 4.4 and worked fine.

Can't use parallels desktop ver.7 after installed OS X Mountain Lion

Dear All
Everyone has solution to fix this issue ? I can't use the parallets desktop ver.7 after installed os x mountain lion.
Please advice.
Thanks & regards

Hi,
Make sure you have the most current build of Parallels 7 - it works well fro me, and the other poster, so unless you have some lind of issue internally, it should work for you.
Try doing a repair permissions from Disk Utility. I needed to do that to get Quicken Essentials to work.
Cheers,
M.

My iphone 4S has problem in making and receiving the calls. While making the call , call fails and netwrok disappears. Like wise no voice is heard for incoming calls. This happened after return from the overseas travel.

My iphone 4S has problem in making and receiving the calls. While making the call , call fails and netwrok disappears. Like wise no voice is heard for incoming calls. This happened after return from the overseas travel.

Hello SamSax
Check out the assist page below for troubleshooting call connectivity.
Calls and connection issues
http://www.apple.com/support/iphone/assistant/calls/
Thanks for using Apple Support Communities.
Regards,
-Norm G.

HT204150 After having upgraded to mountain lion, the application "contacts" doesn't run. I don't see any contact and add new contacts . The application doesn't run

After having upgraded to mountain lion, why the application "contacts" doesn't run? Why is impossible add a new contact and I don't see old contacts that I can see on my Ipad?

I have the same problem. I would like to include this information:
.- A message "error CoreDAVerrorDomain 1" is shown
.- with other user, in the same MAC I do not have the problem

Lose Wifi after return from in Mountain Lion

Similar Messages

Maybe you are looking for