Internet connection not working

I have a band new i7 iMac 27" (mid 2011) on 10.7.2. It has been running flawlessly for about a month since i got it but now the Internet will not connect. I get three wifi bars in the top bar in the right of the screen and it says it is connected but when I open anything that needs Internet connection, such as Skype, safari or software update it says I am not connected to the Internet. When I go into network diagnostics and follow the steps to connect to my Internet it finishes saying you are connected to the Internet, but again nothing works. I have tried shutting down and restarting and it always says it is working but is not. I am very sure it is not my service provider or my router/modem as I am using a laptop and iphones in the same space with no connection problems.
I am stumped. Please help.

When you connect router, Which method you use on computer, wired or wireless? If wireless then you might be having a static IP address on wireless connection. Also make sure you have cloned router's MAC address with that of computer.

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Internet connection not working: don't know how to change network settings

I have a Macbook Pro with an internet connection that normally works fine. However, in my apartment, we are provided with a cable modem that has only one ethernet cable hook-up. Since we needed atleast two ethernet connections for two computers, we bought a switch that we hooked into the cable modem to give us extra ethernet ports.
Recently, while hooking up my ethernet cord to the switch, I have not been able to connect to the internet. Network Diagnostics tells me my Built-in Ethernet is working correctly, but Network Settings are at yellow, and my ISP, Internet and Server have all failed. I have followed all instructions to check my connections, and restart the modem, switch and computer many, many times but there is no problem with any of these things. The other computer connects fine on the switch and cable modem.
Additionally, under Network in System Preferences, I am being shown that there is an IP address and Subnet mask, so I am assuming there is nothing wrong with the cord, modem or switch (which work fine on the other computer), but there is no Router number, which seems odd. If it helps narrow things down, I am also trying to connect to the internet via DHCP rather than PPPoE, which is what I normally use.
I am guessing I must have accidentally changed something to do with my network settings and it is not adapting to the cable modem any longer. Unfortunately, I do not know how to do this, nor what to change it to if I had to. My landlady knows nothing about what kind of network settings I need to connect to the internet service provider. Other than calling Time Warner Cable (who provides the cable modem with ethernet hook-up)is there anything else I can do or should be considering in order to get my internet connection working?

heather1688 wrote:
Recently, while hooking up my ethernet cord to the switch, I have not been able to connect to the internet. Network Diagnostics tells me my Built-in Ethernet is working correctly, but Network Settings are at yellow, and my ISP, +*_Internet and Server have all failed_*+.
I am having this problem if you find a fix please let me know. I have spent hours with apple trying to fix this. Im going on my third week with apple trying to fix this and i have a thread on this issue.
http://discussions.apple.com/thread.jspa?threadID=2104335&tstart=0

Internet connection not working after computer wakes up from sleep. OSX Lion

After upgrading to Lion, I noticed that my internet connection doesn't work when I wake my computer from sleep. I have to turn off the WiFi connection, turn it back on and it will work. I guess this is a glitch that will be fixed later on. Just wanted to point it out. I don't know if someone else is having the same problem? I am not very happy with the upgrade to Lion, things seem to be slower, I've had several freezes requiring to reboot. I guess Lion needed a little more twicking before release. Not worth the $29.99 price tag.

I had this problem on SL and on Lion as well, and it occures for WiFi and Ethernet connections.
In fact the internet connection was not broken as I could ping the destination usin the IP (not DNS name).
In this case the problem was related to mDNSResponder task which handles all dns queries.
It was the most frequent problem in my day to day work with SL and now Lion. It was never fixed by any patch from Apple. I tried almost all voodoo including fresh install, all possible config changes - no solution.
The only version with no problems related to network was 10.5.8. All the other versions had issues of different kind (WiFi instability (lost signal), DNS problems (for wireless and wired connection) sometimes associated with machine sleep and wake up and sometimes with no reason.
QUESTION: Is your problem independent of the access point / router you connect to.
I must say networking was (and still is) the weakest part, besides the other OS X weaknesses I experienced during 4 years of OS X usage.
No problems in the same network with Linux or Windows beeing ran natively on my iMac So hardware is OK.
Software is of poor quality. Not much more to say in this matter.
I found a very interesting article dated 1996 about programming which I think is still valid.
Link to the article: http://www.fastcompany.com/magazine/06/writestuff.html
Below the fragment (with some connection to Apple)
Software is everything. It also s***s.
"It's like pre-Sumerian civilization," says Brad Cox, who wrote the software for Steve Jobs NeXT computer and is a professor at George Mason University. "The way we build software is in the hunter-gatherer stage."

10.7.3 Combo Upgrade - Internet Connection not working

Hi, i've a MacBook Pro 15" (2011 February model). The mac came with Snow Leopard and have been succesfully upgraded to Lion on last August. Yesterday i've upgraded the mac to the 10.7.3 Lion release but the internet connection it doesn't work at all. The DHCP server assings a weird unroutable IP address 169.x.x.x (Airport or Ethernet connection, identical results) and even if i'm forcing manually the IPv4 connection by assigning the IP address, netmask, router and DNS i'm not either capable to connect. I was forced to roll back to the 10.7.2 Time Machine image and it is a real pain in the neck.... Any ideas or clues?

I have the exact same problem.
2010 Mac Pro, 10.7.2 working just fine, directly connect to router via eithernet cable, wireless turned off,
Upgraded with COMBO pack as directed by this forum. Network dead, turn on wireless, Dead!!!
I have a 2010 Macbook Pro on 10.7.3 connected to the same router via wireless, sitting 7 inchs away from Mac Pro. Working just fine, this update done via upgrade software.
I attemped to upgrade the Mac Pro twice, once via Software update, the other by conbo direct download - both give me the same result - no Network connection.
Each time I have wound back to 10.7.2 via time machine to get my Mac Pro working again.
Cam

Weird Issues when Internet Connection not working

I hope I'm posting this in the correct forum.
This morning, my internet connection was not working (a common issue, whatever it is that requires me to restart my router. Tubes clogged, etc etc. I could ping it, but not get out). Anyways, before I restarted the router and restored internet connectivity, my machine took forever to boot and start X. During boot, it would hang at starting the CUPS daemon for a good 20-30 seconds. Then, it would eventually start and the machine would boot to agetty. I could log in fine, but when I typed 'startx' the machine would do nothing for about 5 seconds, and then X would start as per usual. Note that after issuing the startx command I got no output at all to stdout until after the delay.
Question: Why did this happen? My best guess is that on these occasions the machine was trying to connect to the outside world, and it was only after a network timeout that things went ahead as usual. But, that hardly makes any sense to me, for a couple of reasons. Why would CUPS and startx try to connect to the outside? The lag in starting CUPS was considerably longer than when issuing startx. The lag for startx did not seem long enough for a timeout. Weird. Any clarification would be helpful.
Last edited by hbarnwheeler (2009-04-13 14:26:25)

It might something wrong with the IP addressing you used when you statically set the configuration or traffic from the IP address you used is denied.
As you already have an IP config that works (Run ipconfig /all to get it) then you can simply proceed using one of these ways:
On your DHCP level, do a reservation of the IP address so that it will always be allocated to your server
or on your DHCP level, exclude the IP address of the server and set it manually on the server
More information if you contact your Network Engineer for assistance.
This posting is provided AS IS with no warranties or guarantees , and confers no rights.
Ahmed MALEK
My Website Link
My Linkedin Profile
My MVP Profile

Shared Internet Connection not working between G3 iMacs

Trying to share an AirPort connection on iMac 1 over ethernet to iMac 2.
iMac 1 is a 400 MHz iMac G3 running OS 10.2.8. It has AirPort and I set the Sharing-Internet pane to share its AirPort connection over Ethernet. The Firewall is off.
iMac 2 is connected to iMac 1 via crossover cable. It's a 500 MHz G3 running OS 10.3.9.
AirPort base station is set to Pass-through for IP addresses, and is connected via the WAN port to a D-Link Dl604 router's LAN port; the router connects to a cable modem via ethernet from its WAN port. The network consists of about 11 Macs and 3 PCs. 4 of the Macs connect by AirPort and 6 plus the PCs connect by ethernet, leaving the odd man out, the iMac 500. I don't use the network to share info between machines, just to allow all to access the internet
In the Network preference pane on # 2, I have a green light for ethernet -- but it isn't being fed the right info in TCP/IP ... the router info is not the IP of # 1 nor is it the IP of my Router or of my AirPort base station -- I have no idea what it's from but it looks like it's self-assigned. The Router address of #2 is 192.168.2.1, and the supposed network address of #2 is 192.168.2.4.
So, iMac 2 won't connect to the Internet. If I unplug the ethernet cable, the TCP/IP info on #2 disappears, but the same info reappears as soon as I reconnect the crossover cable. I have rebooted the machines to no avail.
Now, I also tried a direct connection from #2 to my router in another room (conventional ethernet cable) and #2 had no problem getting online.
I also tried #2 connected to my Dual G4 (running 10.3.9) in a third room, with the G4 sharing its AirPort connection over Ethernet - result is the same as when connected to #1 -- green light, no internet connection, and a wonky router address. To top it off I run Remote Desktop 2.2 from the Dual G4 and it can't see #2 even when the supposed network address on #2 is entered into ARD manually.
The only thing that's right is the subnet mask.
Any ideas? I've done this with other Macs and never had an issue til now. I even started over and reinstalled OS 10.3.9 on the iMac 500, to no avail.
Is there a cache file or plist file somewhere I need to trash? Too bad there is no way to manually "reboot" TCP/IP. I did try the Internet Setup Assistant, and it told me I would have to enter a manual address. I don't get it -- it's fine with a direct connection, but not through a shared connection....

Solved!
I forgot about permissions and disk repair in Disk Utility. After doing this, the tethering is working again.

Iphone 4s internet connection not working despite having 3g when away from wifi

It works fine with wifi but when I leave the house and go out and about I can no longer connect to the internet despite having a 3g connection everywhere I go. I'm supposed to have internet connection on my contract.
My dad says its something to do with the APN but neither of us have any idea how to change it?
Please help

first try a reset, hold down the home/power button until you see the apple logo and then release, then wait for the phone to boot back up, then try the going on safari.
if that doesn't work then give your phone carrier a call and see if they can resolve the issue.

Internet connection not working on E5

Hi. I recently upgraded my firmware to to 071.003. I am now finding it very difficult to browse the internet with both the Nokia web browser as well as Oprah. The connection is very slow and after a few minutes it basically stops and I get time-out messages.
Could someone help me troubleshoot this?

similar case here, after upgraded to 071.003, I am able to get internet connection at all. I went to ISP customer service and they told me all settings are correct. They ask me to ask nokia about it. I am looking forward if anybody can help on this.

Satellite P750 - touch pad and internet connection not working

Touch pad stopped working a few months ago and now can only get internet via the modem. Apparently need a new driver.
Where do I access this and how do I get the touch pad working again.

Hello
At first check what is the status of all hardware components (WLAN, LAN and touchpad) in device manager. Be sure all components are installed properly.
All necessary drivers you can download from Toshiba download page - http://www.toshiba.eu/innovation/dow...ivers_bios.jsp
It is not easy to say what is wrong with touchpad. Be sure the touchpad is enabled properly.

Internet Connection not working on Windows Server when static address is set for IPV4

Hi,
We are using Windows server and we have set the static IP address for the machine and when we are trying to access internet, it is not happening.
In case if I change IPV4 property to "Obtain IP address Automatically", the IP is getting changed but we are able to access the internet.
So I want the static IP address to remain as is and also the internet to work.
Thanks in advance.
Vishwas.

It might something wrong with the IP addressing you used when you statically set the configuration or traffic from the IP address you used is denied.
As you already have an IP config that works (Run ipconfig /all to get it) then you can simply proceed using one of these ways:
On your DHCP level, do a reservation of the IP address so that it will always be allocated to your server
or on your DHCP level, exclude the IP address of the server and set it manually on the server
More information if you contact your Network Engineer for assistance.
This posting is provided AS IS with no warranties or guarantees , and confers no rights.
Ahmed MALEK
My Website Link
My Linkedin Profile
My MVP Profile

Internet connection not working on certain apps on...

Hi
A weird thing has started happening on my 5800 in that certain apps seem to have started failing to connect to the internet. If I use the browser then I get the connection choice menu i.e. WAP or WiFi, but certain applications have stopped giving this choice and therefore just sit there doing nothing. The only way I can get them to do anything is by connecting to a WiFi point first via settings then starting the application. This is okay when I'm near a WiFi point but it means cannot use these application properly on the move. The apps that are affected are Gmail, Googlemaps and Forcea Weather.
If anyone has any idea on how to fix this then I would be grateful for your help.
Thanks
Solved!
Go to Solution.

Have fixed thsi by changing default connection to always ask under the destinations menu.

The wi-fi on my ipod touch is connected but the internett is not working! Help

Soo annoying, it's connected but the internett is not working. I don't know what to type in or what to do, so I need help.

Are you 100% positive you are connected? Head to Settings - Wi-Fi and tap the > next to the network you are connected to? What is listed for an IP address? If it's in the 169.x.x.x range, it means your iPod did not properly receive a valid IP address via DHCP from your modem/router. So the 169.x.x.x address is a self-assigned one.
This can usually be resolved by a reboot of your router. You can do this by unplugging it for about 30 seconds. After it powers back up, try reconnecting it. It wouldn't hurt to try a reset of your iPod as well. To do this, press and hold both the Sleep/Wake and Home buttons together long enough for the Apple logo to appear.
See here for more troubleshooting suggestions.
iOS: Troubleshooting Wi-Fi networks and connections
B-rock

I get wireless connection but my internet does not work on my ipad 2

I get wireless connection but my internet does not work on my ipad 2

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/
~~~~~~~~~~~~~~~~~~~~~~~
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
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 Pro 10.7.5 internet will not work. HELP!!! Ethernet and WIFI both say connected but still no internet.

I have a macbok pro running 10.7.5. My internet has always worked on it but I decided to try changing my router set up - the set up didn't work so I reverted back to the original setup that had previously worked.
Now, I have an Imac running tiger - I can connect to the internet via WIFI or Built In Ethernet with no problem.
When I try to connect to the internet on the Macbook Pro running osx 10.7.5 my internet will not work
Safari Says (You are not connected to the internet) and Google Chrome says (Page is Unavailbe) and lists some trouble shooting options that I tried.
When I go to System prefrences > Network my WIFI and Ethernet both say "Connected" and have a green light next to them.
I have tryed deleting the connections and starting new ones and I have even tried deleting the Location and starting a new one.
Nothing works - no matter what I do, even know the WIFI or ETHERNET says Connected, the internet will not work on the Macbook Pro.
The Internet works fine on my Imac and I have tried everything such as swaping cables but there doesn't seem to be a problem with my internet
or with my router - it all works fine with my Imac running Tiger.
Can anyone help me get my internet working on my Macbook Pro again? Any ideas?

Hello ASGR.SYS amd WahWar,
I tried both of your suggestions and neither of them worked.
ASGR SYS - When I tried it your way i got a message saying that the that the diagnostic couldn't repair the problem. It shows the thw WIFI, WIFI SETTINGS, NETWORK SETTINGS, ISP, all turn green. But the Internet and Sever stay red. The thing is, there is nothing wrong with my internet connection as I can connect to the internet on my Imac running tiger, both through ethernet and wireless. When I go to System Prefrences and Ntwork the WIFI and ETHERNET both say "Connected" even know I can't veiw any websites.suggestion
When I tried WAHWAR's suggestion I get a message that says cannot connect to the WIFI network and then it lists your typical trouble shooting tips. Like Make sure you entered the right password and make sure you are in range of the wireless network
Again, just to confoirm - My internet connection is working fne both the WIFI and the Ethernet. When I use it on my IMAC running tiger, everything connects as it should and it works perfectly. But when I try to connect with the MacBook Pro, Even know the connections in the Network settings window show up as "connected" the MacBook still seems to think that my internet connection isn't working at all.
I have tried creating new connections, creating new locations, and I have even gone as far to reset my router and start completely from scratch. The result so far has been the same - the IMAC running tiger will connect - my blackberry and iphone will connect - but the macbook pro running lion will not connect..
I'd apprechiate any other suggestions

Using a Mac, OSX 10.6.8; My internet connection is working properly, yet I get the following message in iTunes: "iTunes could not connect to the iTunes store. An unkown error occurred (-54)."

Using a Mac, OSX 10.6.8; My internet connection is working properly, I can reach all sites via browser, yet I get the following message in iTunes: "iTunes could not connect to the iTunes store. An unkown error occurred (-54)."

I have the same issue with almost exactly the same environment...
iPhone4S (32GB) running iOS5.0
Windows 7 Enterprise
iTunes 10.5.2.11
iPhone has been set up to wirelessly sync when on charge yet I get this error when the iPhone is not even charging!
I work for a mobile network operator and although this isn't something we support anyway, we would usually stumble across something like this when customers call us for advice prior to contacting the manufacturer for support, yet this hasn't been a call driver so I'd imagine this is isolated... (either that or not many people have updated their device and set up the wireless sync lol)...
Hey Apple! Any ideas? :-)

Internet connection not working

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