Why does my iMac disconnect from the wifi when it goes to sleep?

Everytime my iMac (Early 2008) running mountain lion goes to sleep it disconnects from the wifi (I only have wifi available) I then get a 'the browser does not support the :File extension)
I'm stuck please help....

Hi Matt,
This has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.7 & 10.8…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x instructions...
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
For 10.5/10.6, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
208.67.222.222
208.67.220.220
Click OK.

Similar Messages

Why does my ipad2 disconnect from my wifi?

When I go into the room where the router is I can connect. But when I walk into another room it disconnects. My brother's ipad2 can connect anywhere on the house? I just receive my iPad Monday. Should I send back to apple?

Not normal. Take it to an Apple Store for evaluation.
Make a Genius Bar Reservation
http://www.apple.com/retail/geniusbar/
But try some of the fixes below.
iOS 6 Wifi Problems/Fixes
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/
~~~~~~~~~~~~~~~~~~~~~~~
Look at 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
Additional things to try.
Try this first. 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.
Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
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
Another thing to try - Go into your router security settings and change from WEP to WPA with AES.
Try This - Renew IP Address:
    •    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
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
If none of the above suggestions work, look at this link.
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
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 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.
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

My macbook pro 15 inch with retina running mavericks disconnects from the wifi when I put it to sleep.

I shut the lid and go to open the lid and the wifi is disconnected and the only way to connect to the wifi is to turn it off then back on and connect to my wifi. This is the only wifi that it happens with.

Hello strubthepigeon
Check out the article below for that particular issue. I have also highlighted on what to do to troubleshoot the issue.
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Symptom: After restarting or waking from sleep, my computer might not connect to the Internet
▪ After waking from sleep or starting up, your computer may not show that it is connected to a Wi-Fi network.
▪ After start or wake, your computer may indicate that it is connected to a network, but does not connect to the Internet.
Solution
Use these steps if your computer does not automatically connect to your desired Wi-Fi network.
Check your TCP/IP settings in the Network pane of the System Preferences. Click the "Renew DHCP lease" button
Select the Wi-Fi tab and view your Preferred Networks list.
Select each network and click the minus sign to remove those networks from your Preferred Networks list.
Click OK and close the Network preferences.
Remove your stored network passwords using the Keychain Access Utility.
Open Keychain Access from /Applications/Utilities. Your window will look like this:
Remove your AirPort network passwords from the login keychain: Select the "login" keychain from the Keychain sidebar. Click the "Kind" column to order the list of keychain items by their type. Remove all entries of the kind: "AirPort network password".
Remove your AirPort network passwords from the System keychain: Select the "System" keychain from the Keychain sidebar. Click the "Kind" column to order the list of keychain items by their type. Remove all entries of the kind: "AirPort network password".  Note: The above steps will remove your Wi-Fi network passwords. If you do not know them, or if your network does not use passwords to restrict access, you should contact your network administrator.
Restart your computer.
Join your Wi-Fi network. You will need to enter your password for your network again if it requires one.
Choose System Preferences from the Apple menu.
Choose Network from the View menu.
Select Wi-Fi, then click the Advanced button in the lower-left hand corner of the screen.
Click the TCP/IP tab from the top of the screen.
Click the "Renew DHCP lease" button.
Regards,
-Norm G.

My iMac disconnects from the internet when I put it to sleep

I connect to the internet through Airport Extreme, with a cable broadband connection. I have only one computer on the network using this airport.
I have a problem which has only been occurring recently. Whenever I put my iMac to sleep, or log off and leave the iMac inactive for a few hours, I lose my internet connection. It appears that I am still connected to the network and if I check my status in Internet Connect it says I am connected to my network and connected to the Internet via Ethernet. However, I can't get a connection. If I restart the iMac I get my internet connection back.
Why am I losing my internet connection, and what can I do to stay connected all the time?
iMac G4 Mac OS X (10.3.9)

I connect to the internet through Airport Extreme,
with a cable broadband connection. I have only one
computer on the network using this airport.
I have a problem which has only been occurring
recently. Whenever I put my iMac to sleep, or log off
and leave the iMac inactive for a few hours, I lose
my internet connection. It appears that I am still
connected to the network and if I check my status in
Internet Connect it says I am connected to my network
and connected to the Internet via Ethernet. However,
I can't get a connection. If I restart the iMac I get
my internet connection back.
Why am I losing my internet connection, and what can
I do to stay connected all the time?
iMac G4 Mac OS X (10.3.9)
This happens to me also. I have the recent firmware upgrade to the Airport Extreme, but my problem predates this upgrade, and the upgrade did not affect this behavior. The problem started after I installed an Airport Express, using it to stream iTunes.
I have noticed, however, the Airport Express remains connected to the internet after waking from sleep when the encryption I use (128 bit WEP) is turned off.
Why this is I don't know.

My phone will randomly disconnect from the wifi and when I retype the password it says it is wrong. It will eventually work but I have to wait for a message to pop up on my screen to allow me to retype the wifi password.

When I first got my phone it worked perfectly fine with the wifi. Although later on I began to have problems connecting it. It will randomly disconnect from the wifi and when I try to retype the password it tells me it is wrong, although it is right. It will eventually work but in its own time, a message will pop up and allow me to type in the password and it will work. But sometimes it takes an hour or more and sometime it takes 10 minutes. I've seen where other people have had this problem but I don't know how to fix it. I'm not sure if it's an issue with my phone or if it's with my wifi. Does anyone know how to fix this?

Does this happen with all Wi-Fi hotspots? A specific one?
Have you tried forgetting the Wi-Fi connection and then reconnecting to it?
What about power cycling the Wi-Fi router?

My ipad disconnects from the wifi link

My ipad disconnects from the wifi link

Try #5 below.
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 droping 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/
~~~~~~~~~~~~~~~~~~~~~~~~~
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/
~~~~~~~~~~~~~~~~~~~~~~~
How to Boost Your Wi-Fi Signal
http://ipad.about.com/od/iPad_Troubleshooting/a/How-To-Boost-Your-Wi-Fi-Signal.h tm
Troubleshooting a Weak Wi-Fi Signal
http://ipad.about.com/od/iPad_Troubleshooting/a/Troubleshooting-A-Weak-Wi-Fi-Sig nal.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
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 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.
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

Why does my computer disconnect from Wi-fi every time it goes to sleep?

I'm currently on OS 10.8 but this problem started happening a while after I started using the new OS. It actually started when I moved into a new house. Every time my computer goes to sleep it disconnects from the wifi singnal and so everytime I come back onto the computer I have to choose which wifi network I want to use. I've tried using different routers and now actually use a new Airport Express but the problem persists.
I think I had this problem many years ago and an apple employee just clicked some network setting and it never happened again when I brought the Mini back home. Does anyone have any ideas about this?
I did a quick discussion search and couldn't find this, apologies if it's already been covered. Thank you in advance!

Words cannot describe how angry this problem makes me. How can world's largest tech company not been able to fix their biggest bug for this many months now?!?!
All these forums are overflowing with the same **** problem: WIFI DOESN'T CONNECT AFTER COMING BACK FROM SLEEP ON MAVERICKS.
How many thousands of people have to post the same godddamn problem for how long?
And no, disconnecting Bluetooth doesn't help (even if it did, its not an acceptable solution). I took my MacBook Air to Apple store twice already and they cannot help either.
aaaAAAAaAaaAAaaarrrrghhh, I'm going to go insane from this problem.
I miss Steve.. he wouldn't let something like this go on for this long. Can a half a trillion dollar company pay attention to its own support forums or at least google "wifi-not-connecting-after-sleep-mavericks" and realize what incompetent company you have become?!

HT202157 my apple tv is disconnected from the wifi intermittently, the problem is not the wifi as it only happens to the apple tv. that I can do to fix this problem.-

my apple tv is disconnected from the wifi intermittently, the problem is not the wifi as it only happens to the apple tv. that I can do to fix this problem.-

That doesn't rule out a network issue, as it can impact devices differently. Intermittent issues are most often related to wifi issues. Try connecting via ethernet. Go to istumbler, netstumbler or similar to get a report of the network, look for signal strength and noise.

TS1398 Why does my iPad2 not display the WiFi icon?

Why does my iPad2 not display the WiFi icon? I have implemented ALL of the troubleshooting tips, but my WiFi icon is still missing, and it will NOT recognize the internet connection that I know to work on my computer and iPhone.

Try the following:
1. Reset the AirPlay devices
2. Reboot the router
3. Reboot the iPad
Note: The AirPlay icon is now in the Control Center

Connect to a network printer for air print, after disconnect from the wifi iphone keep pop up a message saying the printer is offline. How do I disable this annoying message?

Connect to a network printer for air print, after disconnect from the wifi iphone keep pop up a message saying the printer is offline. How do I disable this annoying message?

Hey ronniefai,
Thanks for the question. I understand you are receiving a prompt that your printer is offline. This may be due to a printing job that is currently in the queue. Are you able to see the print summary when following these steps?:
Viewing the Print Summary
You can view the Print Summary by double-tapping the Home button and swiping to the right to reveal Printer Center. Then tap Print Center.
Note: Print Center is available only while printing is in progress.
via AirPrint Basics
http://support.apple.com/kb/HT4356
If so, see if you can cancel the job. If not, what happens when you re-connect to the network that the printer is on?
Thanks,
Matt M.

Why does my iphone 3gs screen go white after it goes "to sleep" for the first time after turning it on?

Why does my iphone 3gs screen go white after it goes "to sleep" for the first time after turning it on?
The screen isn't broken because it works after i turn the device off and back on, but after it goes black once, it's only white again.
But it takes the touches although it's only white, because I can answer my phone when I slide my finger on the bottom of the screen, eventhough there in not the button to see.
This is so weird. I have already done everything I can think of that might help. But I cannot think of anything that might be causing it, because nothing has happened to the device.

Let me know if I should start a new discussion instead of opening a new topic here.
My wife's iPhone is the same vintage as mine 3Gs, but has never had the battery problem. Its affliction instead is that it cannot detect WiFi networks unless it is quite close to the source. Often, when my iPhone not only detects but shows a maximum cells connection with a network, hers cannot detect the network at all. In contrast, her iPhone seems to detect ourcellular carrier just as well as mine does.
Is there any help for this affliction?

Why does my imac get a black screen when switching on

why does my imac get a black screen when turning on, and logging in is very slow.

I would first reset the SMC:
Shut down and unplug the Mac.
Keep the Mac unplugged for at least fifteen seconds.
Plug the Mac back in and do not turn it back on for at least five seconds.
Press the power button to turn the Mac back on.
Then I would reset the PRAM by rebooting the iMac while simultaneously holding the Command-Option-P-R keys until the machine restarts a second time.
Let us know if these procedures don't solve the problems.
Hope this helps

Why does my MacBookPro not see the WiFi signal?

When I open up my MacBookPro in the room where the WiFi transmitter is located it will not connect with it. When inspecting the networks list I notice that my own network is not listed. When the name of the home network does appear trying to connect with it will lead to a timeout error.
When I take the computer upstairs (3rd level, 20 meters away from the WiFi box and have two solid concrete floors between it) the network will be recognized and connected to right away.
Windows 7 computers, the iPad, an IPodtouch, and 4 smartphones of diverse brands do not have this problem. My other Macbook with osx 10.6 has the same problem.
Anybody solved this?

Try the following on your MBP, in order, until (hopefully) resolved:
1a. Delete Preferred Network(s)
System Preferences > Network > Wi-Fi > Advanced > Wi-Fi tab
Under "Preferred Networks," delete the network(s) you regularly use from the list.
1b. Delete AirPort Keychain Entries
Launch the "Keychain Access" application located in Applications/Utilties.
In the windows on the left side: Select login for Keychains and "All Items" for Category.
Click on the "Kind" filter at the top, and look for any "AirPort network password" entries...and delete them.
1c. Add Preferred Network(s)
System Preferences > Network > Wi-Fi > Advanced > Wi-Fi tab
Add the preferred network(s) using the "+" button.
Restart or log out then back in.
2. Move System Configuration Files
(Note: You will have to reestablish your network connections settings.)
Go to /Library/Preferences
Move the SystemConfiguration folder to the desktop.
Restart your Mac. (Note: OS X will rebuild the files that are now sitting on your desktop. If this doesn't resolve the issue, you can move the folder back to it's original location.)

I recently upgraded my ipod to ios 6 and when i try to set up my wifi it show that it is connected then the apple page comes up and it disconnects from the wifi. Help!

I recently upgraded my Ipod touch 4th gen to ios 6 and I try to set up my wifi and it shows that its connected then the apple page comes up and it disconnects from my wifi.

Try the following:
- A reset. Nothing is lost
Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Reset network settings: Settings>General>Reset>Reset Network Settings
- Restore from backup
- Restore to factory settings/new iPod.

Why does my iPad keep losing the wifi every few minutes?

Why does my iPad keep losing the wireless connection every few minutes?

Could be
1 the routers firmware require an Update
2 the iPad is defect

Why does my iMac disconnect from the wifi when it goes to sleep?

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