Disconnects from internet when it goes to sleep

I have Mountain Lion on an iMac I purchased in 2010. Once I installed Mountain Lion, it started disconnecting from the internet when it goes to sleep. Does anybody know how to repair?

Oh yeah I forgot to say I use an ETHERNET connection.

Similar Messages

How do i keep my ipad from disconnecting from wifi when it goes to sleep

I use my iPad mini for grades at school. Everytime the iPad goes to sleep, it loses the WiFi connection and I have to log in again. How can I keep the WiFi connected?

Your ipad will always loose connection once it goes to sleep. There is no way to keep it connected. The only suggestion would be to see if whatever application you are using has a "save password" feature.
hope this helps
-Steven

Macbook air keeps disconnecting from internet when going to sleep mode

New macbook air keeps losing Internet connection when going into sleep mode. Have tried deleting and re adding network and adding DNS 8.8.8.8 still is disconnecting.
Also, since Lion update 2 days ago Internet is very sluggish
HELPPPPPP!!!

You're not the only one. See here:
https://discussions.apple.com/thread/3704539?start=0&tstart=0
The current fix is to turn off sleep mode or use an Ethernet cable.

Losing connection to wireless internet when computer goes to sleep

I have a Macbook, with OS 10.5.6. I connect to internet via airport connected to internet via belkin router. When I close my macbook to put it to sleep i keep losing the connection to the internet. The airport is connected, its only the internet connection that is lost.the only way round this is to restart the airport or belkin router, when the connection is restored. does anyone know a solution to this problem?

Similar symptoms here. Fortunately my MBP "recovers". When I made some experiments with VPNs yesterday, I noticed, when switching the network environment, that the computer is requesting a new IP address. Maybe this will also happen when the Mac wakes up? And maybe the router doesn't respond properly? I would try to set a fixed IP and see what happens then.

TS3274 I pad disconnects from Internet when using it

When I am using my I pad on the net / wi fi it disconnects randomly. Anyone any ideas .

I would update the firmware of the wifi router to the latest's from the manufactor

Need help - wifi gets disconnected when it goes to sleep mode - iOS 6, iPhone 5, WPA Enterprise

Hi, I have read a lot of discussions regarding wifi gets disconnected when it goes to sleep mode on iOS 6, mainly on iPhone 5.
Here is my configuration and it just keeps disconnecting wifi connection once it goes to sleep mode
iOS 6
iPhone 5 white
Purchased on Nov 3
Work wifi config: WPA Enterprise
I tried to manual add the wifi but it did not work. I tried all except for upgrade to iOS 6.0.1. I had a call to Apple Support and the guy told me I could not trust everything i read from here (well, how dare he is!!!). But I did all I could think of, and read from here.
I am with ATT and I do not have a receiption at all at work. I have to turn it to airplane mode, and use the wifi connection. I put my iPhone 4 with iOS 5.0 side-by-side to compare. My iPhone with iOS 5.0 DOES NOT disconnect the wifi connection when it goes to sleep mode; but of course, we all know, iPhone 5 with iOS 6.0 does
Any helps would be so much appreaticated. I am considering to return the phone to apple store, and cancel my 2 yrs extended contract with ATT. I might think to get another one once they have the issue fixed. It is no point to have an expensive paper-weight at work while I can't use the celluare nor wifi connection.
Thanks again,

Hi ChrisJ4203
I have tested it at home wifi tonight. My phone and my wife's iphone (both iPhone 5 with iOS 6.0) do the same.
With cellular data on (aka airplane mode OFF) with WIFI ON
Wifi icon replaced by ATT's LTE icon once the phone was waken up from sleep mode; but within 2 secs, the wifi connection got reconnected again.
With cellular data OFF (aka airplane mode ON) with WIFI ON
WIFI icon disappeared from the top bar after both phones were waken up from sleep mode. It took a while to reconnect to the wifi network (more than 10 seconds).
On a separate note, after i rebooted my phone, i can see it does "searching" the ATT's signal, then it shows "No Service", then next second, it shows ATT with full bars and LTE icon.
My question is, i have never noticed the "No Service" showing up from my iPhone 4. The "No Service" shows up on my wife's phone too. When I first got her phone and was doing the installation, I had noticed the cell signal dropped from full bars to no service, then within few seconds, it went back up. I have not had time to test on her phone again, but it is something I will be monitoring for. I wonder if anyone has similar experience like this.
anyhow, any feedback on how to fix the wifi got disconnected while in sleep mode would be very helpful.
thanks,

7510e printer loses internet connectivity when it goes to sleep

I own a 7510e all in one printer, I connected it wireless again after having it connected with a USB
cable, I had to do this because my printer loses internet connectivity when it goes to sleep or if I get a power outage, this has been going on since I purchased it last year. I got a new wireless router/modem combo from my ISP server and hoped that would solve the problem but it has not.
I cannot get any apps except for those that are on the front of my printer which are just for small kids. I am now told that this printer has been discontinued and 7520 has replaced it, I do not wish to spend another $200.00 in less than a year for a printer. It is registered with HP connected and I have a Efax # and HP connected address, I did everything correctly but it seems that each time I set it up wireless it messes up my desktop windows 7 home premium 64 bit, cloud services told me not to use IE 10 but we are ready to download IE11 so I am using IE 10, this time HP support assistant quit working and I could not even uninstall it until I downloaded microsoft fix it and then redownloaded it from HP web site.
If anyone has any ideas I would appreciate it, I am not on a home group yet it always tells me I do not have administrators permission to do a lot of things, I am the only user.

Hi emma22
Here is a document for Getting the Latest Firmware and Product Updates.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02979046&cc=us&dlc=en&lc=en&os=4063&product=507...
I checked and there is no way to turn off the sleep mode on this model.
I included a document for Printer Does Not Maintain Wireless Connection and to try Solution three: Assign a static IP address to the printer. You will need to get your It department most likely to set this up for you if you don't have full admin rights.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c03678348&tmp_task=solveCategory&cc=us&dlc=en&la...
Hope this helps.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Gemini02
I work on behalf of HP

WebStart Fails to load cached app when disconnected from internet under Apple OS-X

Java WebStart broken under OS-X
Our Java WebStart application fails to re-launch when disconnected from the internet.
Instructions:
Running OS-X 10.8 or 10.9 with internet connected.
Launch a WebStart application (e.g.. from http://www.dsuk.biz/Downloads/SmartType/SmartType2.0.19/APPLICATION.JNLP)
Disconnect from internet.
Relaunch the application either with the downloaded JNLP file or the installed desktop shortcut.
I get "Unable to launch application" error with following exception:
java.net.UnknownHostException: www.dsuk.biz
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
at sun.net.www.http.HttpClient.New(HttpClient.java:308)
at sun.net.www.http.HttpClient.New(HttpClient.java:326)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1167)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1103)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:997)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:931)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1511)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1439)
at com.sun.deploy.net.HttpUtils.followRedirects(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doGetRequestEX(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.checkUpdateAvailable(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.isUpdateAvailable(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)
at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.launch(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main.access$000(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Thread.java:744)
I have reproduced with Java build 1.8.0-b132 and 1.7.0_51
Java Web Start 11.0.2.132
Using JRE version 1.8.0-b132 Java HotSpot(TM) 64-Bit Server VM
Re launching the application under Windows 7 when disconnected from the internet seems to work fine (tested in virtual Windows 7 64 bit VM under Parallels). It used to work fine on OS-X!
RANT/QUESTION
WebStart over the last two years has given me no end of headaches with deployed applications mysteriously breaking when either Oracle or Apple have made changes. So far WebStart just has not been a reliable and robust means of deployment.
Is WebStart to be taken seriously as a deployment vehicle for a commercial application or should I be looking at other solutions?
Also: How do I report bug to Oracle? Do you have to pay for support in order to report bugs?

Java WebStart broken under OS-X
Our Java WebStart application fails to re-launch when disconnected from the internet.
Instructions:
Running OS-X 10.8 or 10.9 with internet connected.
Launch a WebStart application (e.g.. from http://www.dsuk.biz/Downloads/SmartType/SmartType2.0.19/APPLICATION.JNLP)
Disconnect from internet.
Relaunch the application either with the downloaded JNLP file or the installed desktop shortcut.
I get "Unable to launch application" error with following exception:
java.net.UnknownHostException: www.dsuk.biz
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
at sun.net.www.http.HttpClient.New(HttpClient.java:308)
at sun.net.www.http.HttpClient.New(HttpClient.java:326)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1167)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1103)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:997)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:931)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1511)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1439)
at com.sun.deploy.net.HttpUtils.followRedirects(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doGetRequestEX(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.checkUpdateAvailable(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.isUpdateAvailable(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)
at com.sun.deploy.cache.ResourceProviderImpl.getResource(Unknown Source)
at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.launch(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main.access$000(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Thread.java:744)
I have reproduced with Java build 1.8.0-b132 and 1.7.0_51
Java Web Start 11.0.2.132
Using JRE version 1.8.0-b132 Java HotSpot(TM) 64-Bit Server VM
Re launching the application under Windows 7 when disconnected from the internet seems to work fine (tested in virtual Windows 7 64 bit VM under Parallels). It used to work fine on OS-X!
RANT/QUESTION
WebStart over the last two years has given me no end of headaches with deployed applications mysteriously breaking when either Oracle or Apple have made changes. So far WebStart just has not been a reliable and robust means of deployment.
Is WebStart to be taken seriously as a deployment vehicle for a commercial application or should I be looking at other solutions?
Also: How do I report bug to Oracle? Do you have to pay for support in order to report bugs?

I have just got an iMac 21" and it continuously freezes when it goes to sleep and also when the internet is trying to load, i have tried three different browsers but it still does it (safari, google chrome and firefox), does anyone know what is wrong?

I have just got an iMac 21" and it continuously freezes when it goes to sleep and also when the internet is trying to load, i have tried three different browsers but it still does it (safari, google chrome and firefox), does anyone know what is wrong?

To fix the freezing when sleeping problem go to System Preferences>Energy Saver and set 'Computer Sleep' to 'Never'. It seems there is a problem for some with Bluetooth failing to wake after sleep. This fixes it 100% for me and many others on here, until Apple issue a software update to address it.
Not sure what to suggest on the internet problem. I assume you are connected and receive and send emails OK.
Edit: To try to troubleshoot the internet issue maybe try turning the Firewall off: System Preferences>Security & Privacy>Firewall tab.

Power Mac G4 loses internet connection after going to sleep

Run down of computer: I have a Power Mac G4 tower, PANTHER OSX. I have wireless internet through our cable company—I use a wireless router. When I am connected to the internet, and browsing the web or something, if I let the computer go to sleep, it loses connection. I have to go back up to the little signal icon and reconnect to my wireless network.
I suspected it might be a setting through the router, but when my computer was comletely unplugged, and absent from the apartment, the other computer (G5 imac–TIGER) which was having the same problem, suddenly was staying connected even after going to sleep. When my computer came back home and was hooked back up, suddenly the other computer had the same problem again. So, I concluded that my G4 tower was the culprit, and perhaps not the router. We share a wirless network, so it's not surprising that this is the case.
I know there must be a setting somewhere in preferences or something that is telling the computer to disconnect from network when computer sleeps. I have looked everywhere, and can not figure it out.
It's really annoying to have to reconnect each time I use my computer. And just to reiterate, I get internet through a cable modem using my airport card, so please answer the question with this in mind as settings are totally different from dial-up. I do not use PPP.
Anyone experience this problem? Or know how to help?
Power Mac G4 Tower Mac OS X (10.3.4)
Power Mac G4 Tower Mac OS X (10.3.4)

Tried that too! Notta.
This one's really a pickle! Even the Mac specialist at my office was baffled! He suggested shortening the name of my computer...(Jamie Cendroski's computer)...I didn't really understand how this had anything to do with it...but he's supposed to be the expert. He also suggested trashing my keychains and making new ones. I messed around with them, but I don't know enough about this stuff to be bold enough to trash them yet. I'll do a little more research before I do so. I think he might be onto something with the keychains though..?

How can I keep my iMac on the wireless network when it goes to sleep?

I have a new iMac (from Santa) and when it goes to sleep, so does its wifi connection. I use it for work and need to keep my instant messaging app open and running at all times, even when it's asleep. I also like to have all of my email waiting in the inbox when I come back to the desk.
Is there any setting (or workaround) I can do to keep it connected even when it goes to sleep? I have a MacBook Pro that keeps its connection when it goes to sleep so can't figure out what's happening. Thanks in advance!

going to sleep means disabling the network connection to save power
so what you're asking is not really possible
unless you can change what going to sleep mean on your computer
in the power saving settings you may be able to set going to sleep to just turn off your monitor
because thats pretty much the only thing that can go to sleep if you still wish to use it over wifi

My MAC mini looses the wi-fi connection to a Belkin N wireless router when it goes to sleep or shut down. I have to re select the network when restarting or waking the computer up. I think this just started with Lion. My iPod and iPad have no trouble.

My MAC MINI looses the wi-fi connection to a Belkin N wireless router when it goes to sleep or shuts down. I have to re select the network when re starting or waking up the computer. I think this just started with LION. My iPod and iPad have no problem remembering the wireless network.

Thank you BGreg. That is what I have been doing, and then it works just fine. I think it was doing the same thing in the previous version of Lion. I may be incorrect about that. I upgraded to 10.7.3 a few weeks ago, and then last week I reloaded the combo update, hoping it would help. Not so. Thank you for letting me know it is a common problem. I have tried permissions in Disk Utilities, and in Macaroni, both at least 4 times, plus numerous restarts. Nothing Improves. It still can not find the internet when it wakes up or gets up.

Airport drops my connection when it goes to sleep

My iMac always drops my connection to my network when it goes to sleep How do I fix this?

I have tried some minor fixes I saw recommended. Last tried was deleting 6 plist items from library. I have to wait and have it go to sleep to tell if it works.
I have 10.8.2 running on my imac. I have to go now but will check thus discussion upon my return. Thanks John

Printer loses wireless connection when it goes to sleep?

My printer loses wireless connection to my router when it goes to sleep and I have to input the WEP key again. As long as the printer is awake it works fine. The wireless light remains on.
Printer is HP Officejet Pro 8500A Plus and the router is a Verizon 7500.

If you mean WPA, that is good.
Let's set a static IP address for the printer:
- Print a Network Config Page from the front of the printer. Note the printer's IP address.
- Type that IP address into a browser to reveal the printer's internal settings.
- Choose the Networking tab, then Wireless along the left side, then the IPv4 tab.
- On this screen you want to set a Manual IP. You need to set an IP address outside the range that the router automatically sets (called the DHCP range). If you do not know the range, change the last set of numbers (those after the last '.') to 250
- Use 255.255.255.0 for the subnet (unless you know it is different, if so, use that)
- Enter your router's IP (on the Network Config Page) for the gateway.
- Enter 8.8.8.8 for the first DNS and 8.8.4.4 for the second DNS. This is Google DNS. You can choose another external DNS if you wish.
- Click 'Apply'.
Now, shut down the router and printer, start the router, wait, then start the printer.
After this you may need to redo 'Add a Printer' using the new IP address.
Say thanks by clicking "Kudos" "thumbs up" in the post that helped you.
I am employed by HP

After recent update to airport on iMac, the wifi connection is lost when it goes to sleep and requires turning off wifi and turning it on to reestablish contact.

After recent update to OS on iMac, communication to airport is lost when computer goes to sleep. To reestablish connection, I need to turn wifi off then on.

same problem here.
i have a time capsule.
symptoms:
excessively searching for network
but more often than not, it cant find the correct netowrk that is correctly stored in keychain
if i try network assistant opened through safari not finding its page, then it can find the right network after i enter in the password again. it connects. but only for a few seconds then it loses the connection again.
the only fool proof workaround for me is:
1/ shut down time capsule. restart time capsule.
2/ restart mac with airport turned off.
3/ after restart manually select the network from the wireless icon in the menu bar
airport utility is a complete waste of time
old airport utility is still better.

Disconnects from internet when it goes to sleep

Similar Messages

Maybe you are looking for