IMac cannot connect to internet, but all other devices can?

Ok So I have an iMac, two iphones, and a mac book air in the house. The mac book and iphones can connect to my chinese tp-link router, and connect to the internet wirelessly just fine. The iMac however, everytime I tried to connect to the internet via the Wi-Fi signal through the tp-link router, the wifi signal on the very top right hand corner of the screen has an exclamation mark on the wifi bar, and it says Alert: No Internet Connection. The ethernet works fine connected directly to the iMac, and I can access internet via ethernet wire setting, but not wifi-setting from my tp-link router.
What I've narrowed it down to:
It is not the problem with the router, because it is configured so that every device I've tried, except for the iMac works with the router.
It is not the problem with my internet connect, because all other devices works, except for iMac.
It is not the problem with my internet card on the iMac, because I was able to connect with an airport extreme about two weeks ago via wirelessly.
It is not the hardware problem, like I said, ethernet socket, internet card, they all work.
It has nothing to do with the software update, the software is up to date, running on Mac OS X, Version 10.7.2 lion.
It has to be a software issue, something to do with the configuration of the network.
I've already looked everywhere on the apple discussions, I found similar problems, but they were either unresolved, or unrelated to my problem. So what did I mess up on?
Best
Brian

Hi everyone
I have the exact same problem! My imac, operating with 10.7.2 will not connect and has the ! over wifi icon. (sadly connecting the ethernet cable and disconnecting again didn't work for me).
My MacBook is running with os 10.6.8 and works with the router although now I can't update the operating system or I'll have the same probs with Macbook!
So, I've spent most of this week back and forth with apple support, TP-Link and ISP. (all firmware for router completely updated) and nothing's worked.
I have been told by an apple senior technician that the TP-LINK router is not compatible with computers operating with os10.7.2 and I need a different router.
Just thought I should let everyone know to save you wasting loads of money on phone calls like I just did!
take care

Similar Messages

Ipad not connecting to Internet, but all other devices are

I'm using the original airport express...have a macbook pro and ibook connected to the wireless network and everything works just fine. Had my ipad 2 connected last night and it was working great. All of a sudden this morning it started showing a full airport signal but get a "Cannot Open Page...not connected to the internet" message.
In my ipad settings under my network I'm getting an IP address and Subnet mask but nothing under Router or DNS.
I have tried resetting ipad, airport, and router. Have tried renewing lease, and forgetting network.
I've been searching the internet for hours for other suggestions and can't find anythingt that's working or that I understand. Any help would be greatly appreciated. Thanks in advance.

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
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) 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 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.
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
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 mac won't connect to Internet but all other dev...

hi there my Mac will not connect to the Internet but all other Apple and other devices will connect wirelessly can someone help ? Is it an issue with the IP address to the Mac or is it the DNS which is currently blank?

Try these manual network settings.
IP address      192.168.1.50
Subnet Mask   255.255.255.0
Default Gateway 192.168.1.254
DNS Server    192.168.1.254
There are some useful help pages here, for BT Broadband customers only, on my personal website.
BT Broadband customers - help with broadband, WiFi, networking, e-mail and phones.

TS1398 my ipod touch worked fine on my wifi home network. After not using my ipod for a month or so, I cannot access the internet. All other devices work fine. Thus, its not my home wifi....I tried resetting...forgetting....nothing works...still cannot ac

hello - my ipod touch worked well until a couple of months of non-use. Now, I cannot access the internet thru my wifi. All my other devices have no such problem. I have tried resetting wifi, "forgetting network" turning wifi off and on....nothing works....can anyone help?

- Reset the iPod. Nothing will be 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.
- Power off and then back on the router.
- Reset networks settings: Settings>General>Reset>Reset Network Settings
- iOS: Troubleshooting Wi-Fi networks and connections
- iOS: Recommended settings for Wi-Fi routers and access points
Does the iPod see the network? Error message? Does the iPod connect to other networks?

Cannot connect my MacBook but every other device will

my MacBook pro, iPhones, iPad, iPod all connect but it says I have the wrong password which is not possible since all the others are connecting now.
Any ideas? I have restarted both devices twice. It all started after I connected a ATT Microcell.

When it tells you that you have the wrong password, do you at least get prompted anywhere to type it in manually?
Try to delete it from the keychain.

TS1398 I cannot connect to iTunes store but all other devices are connecting to wifi and working great in household???

I cannot connect to iTunes store but all other devices are connecting to wifi and working great in household???

It has been saying this message for weeks so I don't think it's that iTunes is down...thank you though! I have 3 iPads, I phone, and iPod that I cannot connect to iTunes on and am beyond frustrated -ready to return items at this point...

I have I pad 2 and every time I try and get on message or FaceTime it says cannot connect check internet but I have full signal I have tried everything but no luck

I have I pad 2 and every time I try and get on message or FaceTime it says cannot connect check internet but I have full signal I have tried everything but no luck

Try this:
Settings>General>Date & Time>Set Automatically>On

I cannot update ios as it says itunes cannot connect to internet, but it is

Hi everybody, please help me. I've been trying to update my ipad for ages. When i click update it says itunes cannot connect to internet, but it is and it works for iphone and ipod, it's just the ipad. tried with security settings as well, but it doesn't work. did the connectivity test and it says itunes cannot connect to internet...it is connected

If you have an iPad 1, the max iOS is 5.1.1. For newer iPads, the current iOS is 6.1.3. The Settings>General>Software Update only appears if you have iOS 5.0 or higher currently installed.
iOS 5: Updating your device to iOS 5 or Later
http://support.apple.com/kb/HT4972
How to install iOS 6
http://www.macworld.com/article/2010061/hands-on-with-ios-6-installation.html
iOS: How to update your iPhone, iPad, or iPod touch
http://support.apple.com/kb/HT4623
If you are currently running an iOS lower than 5.0, connect the iPad to the computer, open iTunes. Then select the iPad under the Devices heading on the left, click on the Summary tab and then click on Check for Update.
Tip - If connected to your computer, you may need to disable your firewall and anitvirus software temporarily. Then download and install the iOS update. Be sure and backup your iPad before the iOS update. After you update an iPad (except iPad 1) to iOS 6.x, the next update can be installed via wifi (i.e., not connected to your computer).
Tip 2 - If you're updating via wifi, place your iPad close to your router to preclude getting a corrupted download.
 Cheers, Tom

My ipad 1 for no apparent reason no longnet. Our home wireless connection is working for all other devices. Any clues?

My Ipad 1, for no apparent reason, no longer connects to the Internet. Our home wireless connection is working for all other devices.Any clues?

You can also try to reset your network settings on the iPad. Go to Setings>General>Reset>Reset Network Settings.
Good Luck!

I can not connect to server when all other devices in house can

Why can't I connect my iPad to the server when all other devices can?

You may not really be connected to your WiFi network.
Your router may not have given your iPad a valid IP address. Go to Settings > Wifi > your network name and touch the ">" to the right to see the network details. If the IP address starts with 169 or is blank then your router didn't provide an IP address and you won't be able to access the Internet.
Sometimes the fix can be as simple as restarting your router (remove power for 30 seconds and restart). Next, reset network settings on your iPad (Settings > General > Reset > Reset network settings) and then attempt to connect. In other cases it might be necessary to update the router's firmware with the latest from the manufacturer's support web pages.
If you need more help please give more details on your network, i.e., your router make, model and version, the wifi security being used (WEP, WPA, WPA2), etc.

HT1695 My daughter's ipod no longer connects to our Wifi, all other devices are fine, it is just this one...

My daughers ipod can not connect to wifi. ALl other devices in our house do, so I am not sure if this one ahs been dropped too mnay times. All settings are fine, as I manage all the other devices, so I know it is an issue with this ipod.

Does the iPod connect to other networks?
Does the iPod see the network?
Any error messages?
Do other devices now connect?
Did the iPod 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 the router
- Reset network settings: Settings>General>Reset>Reset Network Settings
- iOS: Troubleshooting Wi-Fi networks and connections
- 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 make an appointment at the Genius Bar of an Apple store since it appears you have a hardware problem.
Apple Retail Store - Genius Bar

Can't connect to internet - but all settings seem correct!

My G5 can't connect to the internet (but my Mac Pro can). I've just had an engineer out because I thought it was the cable connection (I connect via a cable modem). Yet I can ping a host via the Network Utility when I boot from the Tiger DVD - so there doesn't seem to be a hardware problem. But from my user account I can't access the internet.
All the Network settings look fine - no firewall, nothing looks out of place. I'm getting an IP address served by the modem, and Diagnostics even says it can connect to the ISP server just no dialog with the internet!!! It's bizzare. Tried ping from Terminal too, no go. I've repaired permissions, still no go. Only thing I haven't done is zap the PRAM.
This is a direct connection to the modem via ethernet (I usually use a router but it's out of the equation now)
There's something blocking the connection but I can't find out what.
This happened after I swapped the network round so that my new Mac Pro would be the main internet machine (sharing the connection with other machines on my network). Previously I could connect to the G5 via the Mac Pro but that's no longer working, or rather it's REALLLLLY slow, it will eventually connect.
The only thing I've done out of the ordinary is put the drive from the G5 inside the Mac Pro to transfer some of my files. I had used BatChmod to change permissions on some User folders so I could copy them, but I've repaired the premissions since.
please HELP!!!!!!

I solved my problem by installing a fresh system on a different drive and starting from that. My Mac can now connect - but starting up into the other system causes the same no-internet problem so I can only assume it is some OS corruption that caused it.
Hope that helps someone.

My Ipad doesn't connect to wifi while all other devices are connected.

My iPad doesn't connect to wifi anymore while all other devices in the same network are connected including iPod.
iPad was connected this morning, but quit connecting since this afternoon.
It tries to connect, but everytime connects, it disconnect within a second, and it keep doing the same thing.
This is the first time ever I see this problem since I started using this iPad.
What happened to my iPad??

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

IPod is recognised via USB, but all other devices are no longer recognised.

After a year of good work, at one moment the USB ports on the front of the computer doesn't recognise any device, except the Ipod Touch 4G wich is working fine. All other devices are not capable of communicating with the PC using USB-ports (camera's, SD-cardreaders, TomTom, etc.). It might have something todo with the IOS 4.2.1 upgrade (Apple), but I'am not sure. Any solutions/suggestions please?
Message was edited by: GuitarArnie

Welcome to the discussions,
did you check for possible BIOS updates for your computer or the other devices you want to connect?
See also this article about driver installation for USB Mass Storage devices: http://support.apple.com/kb/TS1538

My ipad2 has lost wifi connectivity at adistance while all other devices connect to new wifi.

After getting new wifi network, my ipad2 loses connectivity unless it is right beside the router. All other devices have good wireless connectivity.

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
BTW- Your profile shows you have iOS 6.1.4 installed. The max iOS for an iPad is 6.1.3. iOS 6.1.4 is for iPhones only.

IMac cannot connect to internet, but all other devices can?

Similar Messages

Maybe you are looking for