Serious wifi problems with iMac after installing Mountain Lion
After installing Mountain Lion, I'm experiencing serious trouble with wifi. I noticed that some people had this before with Lion. Can anybody help to solve this problem or should I downgrade to Mountain Lion?
Please help
Thanks in advance!
Thank you for the information Arizonadonn! I'll install 10.8.1 this evening. I really hope you're right after having connection troubles for almost a month now .
If this solves my problem, you'll be my hero !
Similar Messages
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Problems with restart after installing mountain lion
Hi, I downloaded and installed mountain lion. The computer restarted but it has been hours and I still have the white screen with little circle with the lines, not rainbow. What do I do? Getting worried here.
Hej guys
I just bought a Hengedock docking station for my late 2011 mbp 13".
And i wasn't aware of this problem untill I recieved the dock.
Oubviously I was very frustrated as well as most other people - however, I found a solution.
This may not be the best solution, but it will do for me at least untill apple fixes this bug.
What I did was i downloaded an app called InsomaniaX (Do a google search and it will pop up as the first result). What it will do is, that (when activated) it will prevent your laptop from sleeping, when the lid is closed, BUT still turn off the internal monitor and keyboard light.
This will make use of vertical docking stations like the hengedock possible :-)
//Michael -
Anyone else having problems with Mail after installing Mountain Lion?
Since upgrading to mountain lion, I have had a number of problems with Mail. At the moment, it is predominantly when my desktop imac goes to sleep overnight. In the morning, it will not receive mail. The app will not close, so I force quit it. Trying to reopen Mail after that just does not happen, so I have to restart my machine to get things going again. Any tips?
If 10.7.0 or later...
Bootup holding CMD+r, or the Option/alt key to boot from the Restore partitirion & use Disk Utility from there to Repair the Disk, then Repair Permissions.
If that doesn't help Reinstall the OS. -
My wifi is very slow after installing mountain lion on my Mac book pro
My wifi is very very slow after installing mountain lion on my MacBook pro.
What can I do?Ha ha, I misread that as "My wife is very slow after installing mountain lion on my Mac book pro"
BTW on my MBPro (late 2009 with max RAM) Mountain Lion runs very well with no slowing down. -
Flash Problem With Safari After Downloading Mountain Lion
I'm getting a persistent "Shockwave Player Error" when launching or resetting Safari . . . posting here because I upgraded from Snow Leopard directly to Mountain Lion and that's when the problem began. I have a circa 2010 Macbook Pro with 2.2 GHz Intel Core 2 Duo, with OS X 10.8 and Safari 6.0. I have attempted fixes in earlier threads (mostly regarding the same exact problem when upgrading to Lion), such as uninstalling Flash and reinstalling the latest from the Adobe website. Also tried (temporarily) disabling plug-ins to see if it's flash-driven.
This is the thread with the similar problem ... the error message displayed is the exact message I'm getting here -----> https://discussions.apple.com/thread/3222853?start=0&tstart=0
Thanks for your help.Maybe the solution you are looking for is this:
System Preferenes > Network > Wi-Fi or Ethernet (whatever you're using) > Advanced > Hardware > Set 'Configure = Manually' > Change 'MTU = Custom' = 1380 -
Problem with VoipAlot after install Moutain Lion: it doesn't call
Hi Since I installed Lion Mountain that I can not use the app VoipAlot on my iMac. Do you know if there is any inconsistency between this application and operating system?
Thank youI try that but i didn't recieved any answer from VoipAlot.
Do you know other persons with the same problem? This problem ocurred on my both Mac (iMac+MacBook Pro).
Thank you -
What is causing the screen to flicker on my iMac after installing Mountain Lion OS X?
see example of flickering here: http://youtu.be/NM8RToGZ71A
I've done two reinstalls but nothing changes. Please help.try this:
PRAM
http://support.apple.com/kb/HT1379 -
After installing Mountain Lion doesn't external hard drives mount or stay mounted.
I have tried resetting my Mac's PRAM but the problem still remains.
Even USB memory sticks are unmounted efter a few seconds.
Anybody else with this major problem?I have the same problem, although mine has not been solved by ESET update, finder settings, PRAM & SMC resets or anything else.
Don't get it, my external hard drive still works on both my housemates computers - one macbook pro (with snow leopard) and one dell, just not on mine with mountain lion.
Any ideas for me guys? -
After spending several hours sorting out Canon Pixma OSX problems here are my thoughts:
Canon 860 Series (Pixma 868) Printer Problems with OSX 10.8 (Mountain Lion) – links to Canon Support Site with Drivers and Software with install tips
Problem:
- New imac and MacBook Pro 2012 (OSX 10.8.2) had a problem using Canon Pixma 868 printer on network and would not scan or print using Canon Pixma software (Pixma MP Navigator 2.1 & Photo Print), which has advanced scanning and photo printing functions.
- When I connected the canon printer to my imac, OSX 10.8.2 automatically downloaded and installed drivers for Canon 860 series printer. I could then add the new printer (select ‘apple menu’ / ‘system preferences’ / ‘print and scan’ / “+”) and printer would work while connected via USB but could not get to print or scan over network wifi.
- The original Canon 860 Series CD does not work with 10.8 and the manual / online instructions did not make sense (as based on CD install).
Solution:
1) Install Canon Printer Drivers and Software (from official Canon site)
Go to canon support site, review FAQ, then download and install following Pixma 860 Series software & drivers for OSX 10.8 (links see below). The version I downloaded is in brackets but check for updated version. Full instructions are below.
Canon 860 Series Drivers & Software for OSX 10.8 Mountain Lion:
The base software and drivers needed for using Canon 860 Series on Mac OS X 10.8 (USB) are
1 Printer Driver
(Canon MX860 series CUPS Printer Driver Ver. 10.67.1.0 (03-Aug-2012))
2 Scanner Driver
(Canon MX860 series Scanner Driver Ver. 14.11.4a (03-Aug-2012))
3 Network Tool
(Canon IJ Network Tool Ver. 4.1.0 for Intel Mac (27-Dec-2012)
Canon Software for using advanced printing and scanning functions (while connected to network)
4 Solution Menu
(Canon Solution Menu Ver. 1.4.1 (27-Jul-2012 ))
5 MP Navigator EX
(Canon MP Nav EX Ver. 2.1.3 (02-Auf-2012))
6 Easy-PhotoPrint EX
(Canon Easy-PhotoPrint EX Ver. 4.1.6 (21-Jan-2013 ))
Canon Support (HK) – check your local site
http://www.canon.com.hk/en/download/main/index.do
Select Product and drivers from support site eg http://support-hk.canon-asia.com/
1. Choose a product category
Multifunctional Printers
2. Choose a product series
Pixma
3. Choose a product model
Pixma MX868
4. Choose type of document
Downloads or FAQ
If you have problems installing the software under 10.8, see the FAQ on Canon site. You will need to allow software installs from “unidentified developers by using “Control” Key or by changing your system preferences)
2) Check Canon Printer and Software Working while connected via USB
Once you have downloaded and installed drivers and software and restarted computer, check that the printer and Canon Pixma software (Pixma MP Navigator 2.1 & Photo Print) are working via USB. Open the Canon IJ Network Tool App (Applications / Canon Utilities /IJ Network Tool / Canon IJ Network Tool App) and make sure you can see the Canon MX 860 series (xx.xx.xx.xx.xx.xx) and that it shows the correct SSID Wifi settings (under the Canon IJ Network Tool App ‘Setup menu’). This is normally done as part of the automatic install but worth double checking
3) Add new network printer using ‘apple menu’ / ‘system preferences’ / ‘print and scan’ / “+”).
After you have checked USB printing turn off printer, unplug the USB cable and shutdown the Canon IJ Network Tool App.
Then turn the printer back on and wait 30s. Then add a new printer using ‘apple menu’ / ‘system preferences’ / ‘print and scan’ / “+”). Once you select “+” (add new printer), wait 10-30s for the Wifi Networked Canon MX 860 Series printer to appear in the new window eg Canon MX 860 series (xx.xx.xx.xx.xx.xx) (Kind: “Canon IJ Network”)
DO NOT ADD THE MX 860 SERIES BONJOUR SCANNER (the Bonjour Scanner is the built-in software, is not needed and often appears first on the add printer list). The Canon scanner can be accessed used through the MP Nav EX Ver. 2.1.3 software (which has much better functions)
You will now have two Printer Canon MX860 (USB) and Canon MX860 (Wifi / Network). Set the Canon MX860 (Wifi / Network) as default and test print and scan
If the Wifi Networked Canon MX 860 Series printer does not appear, check the printer and make sure that the printer can see the wifi network. On the printer select Menu / Settings / Device Settings / Lan Settings / WLAN Setting List. It should say WLAN Active, identify the SSID and have an IP address
If the printer can not see the Wifi Network, plug the USB cable back in, then open the Canon IJ Network Tool App (Applications / Canon Utilities /IJ Network Tool / Canon IJ Network Tool App). Make sure you can see the Canon MX 860 series (xx.xx.xx.xx.xx.xx) and that it has your SSID settings (under setup), if it has this info, restart the computer and the printer and try againHi, thaks for response, meant to post as a discussion (not question), wanted to save others time if they get the same problem
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I am having mail problems after installing Mountain Lion
The mail doesn't work properly and the cursor freezes up and I get the color wheel whenever I start typing and have to wait for it to catch up. All this started after downloading the wonderful upgrade Mountain Lion. Is there a way to go back. I was happier then.
Graciegirl,
I habve exactly the same problem with my wireless Deskjet F4500. I have done the following with no results:
Installed Mountain Lion update
Printer cannot communicate wirelessly (blue light blinks)
Uninstalled HP Software
Reinstalled software using usb cable, otherwise printer not recognized.
Software successfully installed
Ran software update
New HP Software installed 2.9
Printer still connected with usb cable and is recognized in Printer preferences as idle
Box checked to configure device for wireless network
Directed to use usb cable to configure (it already is)
clicked continue
Hp Installer determines that computer is connected to a wireless network
correct net name indicated
wep password entered
looking for network
Get the following message:
Device not connected
To configure the network settings of the selected device, please connect it temporarily via usb. The device can be disconnected from the usb once the network setting are transferred
click okay, but cannot continue because printer is already connected by usb.
Ran wireless net test by pressing scan button
No filtering FAILS
I can print using USB cable
Can anybody out there help Graciegirl and I? -
Hi
I give up. I just cannot see my exchange inbox in Mail after installing Mountain Lion. My mail is not being deleted. Its still in my inbox I just can't see it. I've tried everything suggested on the forums and nothing is working for me.
My productivity has completely stalled and I really need to move to an email client that is going to work seamlessly with Mountain Lion.
Any recommendations?endobrendo wrote:
I have the same problem. Upgraded to ML, and my Mac Mail suddenly can't communicate with Gmail's SMTP server.
I have been having the SAME problem with ALL my Gmail accounts with Mail.app - It is very annoying, especially when you have clients and other important email to respond to. So you're definitely NOT alone in this department.
Might have to go back to Thunderbird or something until this gets fixed, which is going to really suck because I have 5000+ emails along with all my Email Folders in Mail not too mention the Rules I have had setup for years!
AND with the RSS Feeds NOT working in BOTH Mail and Safari! That was a HUGE MISTAKE and defintely a STEP BACKWARDS on whoever's idea that was for sure! -
After installing mountain lion facebook will not load on iMac
Any helpers Please !!
I have the same problem... but when i connect my MacBook Pro late 2009 on my cousin internet the facebook page works normaly. but when i reconnect in my wifi it stops to work again... and it only hapens with macbook pro, On my iPad, iPhone and PC the facebook page works properly. And another thing, when my counsins bring their Macbooks to my network, it stops to enter on facebook too... I already reset my router config everything and facebook dont work with anything with mountain lion... My router is a linksys wag200n and the problem started when i install mountain lion. Thanks for help and sorry for bad english xD.
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Bluetooth inactive after installing mountain lion - your computer restarted because of a problem
Good day
I read up on forums, and I think my reboot error is due to my bluetooth that is inactive, which happened after installing Mountain Lion
My Bluetooth worked before under Snow Leopard
I have deleted the file under library to no avail
I have rebooted with cmd option P R to no avail
I have repaired permissions and this is the only message that pops up, and bluetooth still does not work after reboot.
Repairing permissions for “Macintosh HD”
Warning: SUID file “System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent” has been modified and will not be repaired.
This is my CONSOLE error report
Fri Sep 14 11:27:24 2012
panic(cpu 2 caller 0xffffff8002eb7b95): Kernel trap at 0xffffff7f83acc6c2, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x0000000000000008, CR3: 0x00000000050d2000, CR4: 0x00000000000606e0
RAX: 0x0000000000000000, RBX: 0x0000000000000000, RCX: 0x7fffffffffffffff, RDX: 0x0000000000000200
RSP: 0xffffff808170bd70, RBP: 0xffffff808170be20, RSI: 0x00000000000001ff, RDI: 0x0000000000000001
R8: 0x0000000000000001, R9: 0x0000000000000000, R10: 0x0000000000000001, R11: 0x0000000000000000
R12: 0xffffff800fe37401, R13: 0xffffff800d8b1e00, R14: 0xffffff800e1bb000, R15: 0xffffff7f83b06500
RFL: 0x0000000000010246, RIP: 0xffffff7f83acc6c2, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000000000008, Error code: 0x0000000000000000, Fault CPU: 0x2
Backtrace (CPU 2), Frame : Return Address
0xffffff808170ba10 : 0xffffff8002e1d5f6
0xffffff808170ba80 : 0xffffff8002eb7b95
0xffffff808170bc50 : 0xffffff8002ece4ad
0xffffff808170bc70 : 0xffffff7f83acc6c2
0xffffff808170be20 : 0xffffff8003247b6a
0xffffff808170be80 : 0xffffff7f83ace2f4
0xffffff808170beb0 : 0xffffff800323b708
0xffffff808170bf40 : 0xffffff8003236b65
0xffffff808170bf60 : 0xffffff8002e3dcae
0xffffff808170bfb0 : 0xffffff8002eb2677
Kernel Extensions in backtrace:
com.apple.iokit.AppleBluetoothHCIControllerUSBTransport(4.0.9f8)[AFA59211-C064- 3DA0-83BB-DA8DD75CBED5]@0xffffff7f83ac6000->0xffffff7f83aebfff
dependency: com.apple.iokit.IOUSBFamily(5.1.6)[3D499FAA-A5C4-3ED8-BF37-3B561ED21D64]@0xffff ff7f83463000
dependency: com.apple.iokit.IOACPIFamily(1.4)[A35915E8-C1B0-3C0F-81DF-5515BC9002FC]@0xfffff f7f83981000
dependency: com.apple.iokit.IOPCIFamily(2.7)[8C9E06A4-13D0-33F5-A377-9E36F0ECC229]@0xffffff 7f83441000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
12B19
Please assist and I hope my thinking is correct that this is what is causing my restart error.I have been having the same problem for the past 2 days.I installed Mountain lion 5 days ago.There wasn't any problem for the first 3 days but after that my computer won't shut down,it always restarts when i ask it to shut down and i get the same message as dan1101.what is going on????
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Numbers does not open with the main user after installing mountain lion. It works flawlessly when I use the second account on my mac. What got corrupted in the admin-account, something in the user-library? How can I fix it? I´m kinda desperate... (the same happens with the other iWork-Apps!)
Looking forward to hearing from somebody with a littlemore expertise than me, Chrisyou can remove preferences files by navigating to the Preferences folder for your user as follows:
0) Quit ALL iWork apps (Keynote, Pages and Numbers)
1) from the Finder select the menu item "Go > Go To Folder…". This will bring up a dialog:
2) enter the path "~/Library/Preferences" (no double quotes)
3) find the files:
com.apple.iWork.Keynote.plist
com.apple.iWork.Numbers.plist
com.apple.iWork.Pages.plist
and move these to the trash. I would NOT empty until later.
4) restart Numbers -
After installing Mountain Lion on my MBP Retina, the WiFi connection drops frequently (not happening to other devices around, like on an iPhone); it also takes a lot to reconnect after wake up. Does anybody have a solution for this?
After installing Mountain Lion on my MBP Retina, the WiFi connection drops frequently (not happening to other devices around, like on an iPhone); it also takes a lot to reconnect after wake up. Does anybody have a solution for this?
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I have recently upgraded to OS X Lion on my MBP C2D, 4 GB. I went ahead to verify my disk which asked me to repair the disk. I inserted the Installation DVD but it gave an error that this DVD won't work on this version of the OS X. It asked me to ins