IMac suddenly stopped connecting to my wireless network

Hi there,
I've had my iMac for about 2 years and had no problems up to now.
About two days ago my wireless network disconnected and kept disconnecting and connecting on and off, it's not the Internet because my iPod and pc are fine.
I was just wondering what could of caused this, a virus? Dodgy update install? Also how I can fix this? If I reinstall my os will it wipe my files, I'm a filmmaker so I need to keep pretty much everything on my computer
Thank youuu!

Hi there, I have exactly the same problem, one year with imac and a few months ago my wireless network disconnected and kept disconnecting and connecting on and off, it's not the Internet because laptop and other aps are ok
Today I tried contacting Virginmedia to see if they could help and they told they are not trained for mac! Anyway they suggested to try to use the "renew DHCP lease" button in the TCP/IP page in network settings and it seems it is working better now, lets see if it lasts...

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Imac and Macbook Pro suddenly stopped connecting to my wireless network

I am having the strangest problem. I've had a linksys router for years and my network has worked fine. I have a 2008 iMac, a new Mac Book Pro, Xbox 360, and a PS3 connected to it. Yesterday, the Apple products stopped connecting to the linksys, however the Xbox and PS3 connected fine. I thought it was my router being the problem so I went to Apple Store and bought an airport express to just set that up as my primary router. I could not set it up the normal way wirelessly as neither my iMac or MBP would pick it up via the Airport Utility tool. I had to hardwire it to my iMac to get it set up. It seemed to not be working however the green light did eventually come on. My xbox connected to it fine, however the iMac and MBP would not connect. Both did end up connecting but only for a short time and now neither can find the Airport Express. Does anyone have any suggestions as to what my problem is? It just doesnt make sense that both mac computers stopped picking up the linksys at the same time, and neither will really pick up the Airport express either. I'm just so distraught over this because I had everything working fine such as sharing files, wireless printer, Apple TV, etc.

Hi there, I have exactly the same problem, one year with imac and a few months ago my wireless network disconnected and kept disconnecting and connecting on and off, it's not the Internet because laptop and other aps are ok
Today I tried contacting Virginmedia to see if they could help and they told they are not trained for mac! Anyway they suggested to try to use the "renew DHCP lease" button in the TCP/IP page in network settings and it seems it is working better now, lets see if it lasts...

IPhone 4 suddenly stopped connecting with home wireless network

Upon getting a new wifi router, initially my iPhone 4 connected. Last night I lost wifi conneciton on it and cannot get it back. Updated to IOS 7.1 to see if it would help. Nothing. Have reset network setings, gone into airplane mode and attempted hard restart. Have also reset modem. The phone worked on another wireless network and all other devices in our house are working fine. Does anyone have any insights/ had this problem before? House network is Bell Fibe.
The phone can see the wirless network but when we go to connect it infinetly spins.
Thanks!!

Hi garth_w,
If you are having issues connecting to your home network from your iPhone after a change in routers, you may find the following article helpful:
iOS: Troubleshooting Wi-Fi networks and connections
https://support.apple.com/kb/TS1398
Regards,
- Brenden

Imac suddenly stopped connecting to network

sorry if this topic already exists somewhere. i've been searching these forums for an hour and can't find any useful help on the subject.
we bought our first mac almost 1.5 yrs ago. this beautiful 27" imac worked fine for 1 year and then suddenly stopped connecting to our wireless network. distance to the wireless router isn't an issue. doesn't matter where i move it to in the house, it sees the network, but won't connect anymore. 6 other laptops/video game consoles/pc's all continue to connect w/o a problem. this happened once approx 3 months ago and i figured our old router had kicked the bucket, so i bought a new router and it worked fine for several months and now it's happening again.
i've gone thru all the preliminary steps of unplugging the modem, the router, the imac, and renewing the dhcp but nothing helps. it will work fine if i wire it directly to the router, but i don't want to run a 75ft ethernet cable thru the house.
i'm so frustrated with this supposedly wonderful imac! can anyone help me?

Here's something to think about... I know my AT&T DSL Cable Modem will only allow a certain number of connections. A few years ago that might not have been an issue, but now with wi-fi cells, gaming systems with netflix, other laptops/ipads, you might be exceeding that limit. It could be they are all connected and you don't have a spot on the router.
This might be elementary, but thought I'd throw that out there.
BW

My iPad suddenly stopped connecting to my home network. It shows the network to. Choose from but there is no IP address or other information on the network page. It is set on DHCP and proxy is set at auto. Do I have another setting wrong?

My iPad suddenly stopped working with my home network. It shows the network to choose from but will not connect. When I look at details in that network it does not show IP address or any other info for the network. Setting is on DHCP and http proxy is set on auto. Network is active and can connect on wife's iPad and other home computers. Do I have another setting wrong?

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
~~~~~~~~~~~~~~~~~~~~~~~~~
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/
~~~~~~~~~~~~~~~~~~~~~~~
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/
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

Macbook Air 2013 model stopped connecting to the wireless network

My 2013 MacBook Air has suddenly stopped connecting to my network. It is often intermittent and will kick me off the network if anyone else is connected. I think it is something to do with my Linksys router and the new Apple Airport card.
Do I need to get a new router and if so do I need the Apple Wireless router?
Andrew

Work through the steps in http://support.apple.com/kb/TS1398 and see that brings it back.

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I just got my iBook back from repair at Apple (a display problem), and now I have two minor, but annoying, problems. First, the computer no longer automatically connects to the wireless network at my work, but every time the computer goes to sleep or I restart it I have to pull down the AirPort menu and select the network to join. I don't have to enter a password, I just have to select the network on the menu.
The second problem is that I used to have the computer log me out whenever the screen saver came on (after 15 minutes) so if I left my office for a while nobody would be able to access it without the password. This isn't working now and I don't know how to change it.

Hi, I have tacked on to this thread as I have the same problem... I can't connect and have get the spinny ball when I try to open internet connect.
This happens every time I update, and I too usually fix it by updating the keychain. However, this time the box only popped up as I was restarting and i couldn;t click it in time, and it hasn;t reappeared since.
How can I fix this?

My ipad 2 suddenly stopped connecting to my home network..

I was browsing the internet on my ipad and suddenly it stopped connecting to wifi. I wondered if there was a problem with the router but I was able to connect with all the other devices. I treid restoring my ipad to the latest version (ios6.1.3) and resetting network settings but they did not work. Any help would be much appreciated.

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/
~~~~~~~~~~~~~~~~~~~~~~~~~
Wi-Fi Fix for iOS 6
https://discussions.apple.com/thread/4823738?tstart=240
iOS 6 Wifi Problems/Fixes
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

IMac suddenly can't see any wireless networks!

I have a recurring problem with my iMac 20" Intel Core Duo.
For some reason, it suddenly loses the ability to see wireless networks. The problem is resolved if I restart. I go through this several times each day, and the frequency of the problem is increasing.
Strangely, there is nothing wrong with my Airport Extreme wireless network. My other computers see it just fine.
And when I check the Airport indicator at the upper right-hand side of my iMac's desktop during this problem, it shows NO wireless networks at all! And I have 7 neighbors with wireless networks on 24/7!
As I said above, the solution has been to restart my computer, at which point all the networks appear again.
Can anyone offer a solution/explanation? I have tinkered with my network settings to no avail.
Thanks in advance for any suggestions.
MacBook Pro, iMac 20" Intel Core Duo Mac OS X (10.4.9)

It has to be unrelated because I too have been having the same issue for the past 2 weeks. Actually it seems that ever since I reloaded the last iMac intel update (which I had to do to get my iSight to work again)
I've been having this issue multiple times a day. I even moved my iMac thinking I had too much distance and walls between the router and the iMac.
I know it isn't the router because the laptop in the house picks up a very strong signal all the time.
I tried switching channels on the router (a linksys) and it has seemed to help a bit. I am now down to dropped signals only about every other day.

My ipad suddenly stopped connecting to the wifi network. My lap top still does however

My iPad was working fine with the wifi at my house but suddenly stopped working today. My laptop still connects just fine but I can no longer get my iPad to connect. Any suggestions?

Does the iOS device connect to other networks? If yes that tend to indicate a problem with your network.
Does the iOS device see the network?
Any error messages?
Do other devices now connect?
Did the iOS device connect before?
Try the following to rule out a software problem:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Power off and then back on your router
.- Reset network settings: Settings>General>Reset>Reset Network Settings
- iOS: Troubleshooting Wi-Fi networks and connections
- Wi-Fi: Unable to connect to an 802.11n Wi-Fi network
- iOS: Recommended settings for Wi-Fi routers and access points
- Restore from backup. See:
iOS: How to back up
- Restore to factory settings/new iOS device.
If still problem and it does not connect to any networks make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.
Apple Retail Store - Genius Bar

IMac suddenly stopped connecting to the internet

So, I left the room for a while and let the screen saver come up, when I came back it wouldn't connect to the internet with any program (iChat, Safari, Firefox, and Thunderbird).
I connect via ethernet to FiOS but none of the other computers are having trouble connecting.
It's not a connection problem, thankfully. I connected my ethernet cable to a laptop and it connected perfectly.
I ran a diagnostics, however it was essentially useless. It told me that it could not connect to the internet or the server, and to check to make sure that the URL was typed correctly... No websites will load, though.
I did ping my mother's laptop (and my own computer) and it came back fine again, again and again...
In my limited opinion, it has to be some sort of software problem, but this being so all of a sudden bothers me. If I were on a PC I would think virus, but since it's a Mac, this is not likely at all.
Please give me some help and ideas, cause I have run out...
Thanks,
Mike.

I used to have the exact same problem, after I cleared my dns cache and renewed my DHCP license everything worked. Strange thing is that, somehow, someway, by some form of magic this problem stopped happening all together so I never had to continue issuing the command everytime. Could've been due to an update shrug
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Greetings cbtc160,
So you were using Airplay just fine but suddenly it quit?
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About AirPlay Mirroring in OS X - Apple Support
Firewall security settings
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Nothing has been changed on either device, including their locations. My iPhone and iPad mini still have no problem connecting to my network. Help!

Thanks- I tried, but it still doesn't work. The iPhone and iPad connected immediately. Even when I click on my network, it still won't connect.

Iphone 4s wifi suddenly stopped connecting to home network

My iphone 4s suddenly stopped connecting to my home wifi 2 weeks ago, now it won't even bring it up on the list of available networks. I have tried resetting network settings, have tried manually connecting but it says "unable to locate network". Why would this all of a sudden start doing this when I have had this phone for over a year. My husbands iphone 4 has no problems whatsoever and connects to our home network just fine so I know it is not the router. This is so frustrating

I'm currently suffering from this problem as well. If you or your husband can get your iPhone open, there may be a screw in the upper antenna area of the iPhone that is loose (this screw grounds the antenna to the chip/mainboard).
http://www.iphoneshopusa.com/blog/wp-content/uploads/2012/04/top-shield-iphone4- wifi-problem1.png
It's pointed out in the image above. Many have tightened the screw and said their Wi-Fi optimally again. Having a phone for a year does mean a lot of wear-and-tear: dropping, vibration, heat, all accumulate so that the delicate components inside get knocked around and, in this case, loose. Try this method! (If you can, of course.)
Good luck!

Suddenly my iphone 4 stopped connecting to the 3g network although the 3g symbol is there on the left of the screen

suddenly my iphone 4 stopped connecting to the 3g network although the 3g symbol is there on the left of the screen did this happen with anyone ??

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IMac suddenly stopped connecting to my wireless network

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