Have connection, but no internet

I have an iBook (OSX 10.4.3, airport (Great signal) and installed an airport update several days ago and since then my internet connection has been very sketchy. I connect using Airport and several other people are successfully using the signal, my machine shows four bars of signal, so we know that the connection and signal are good. And in Networking pref panel, it shows that I am connected to the internet via Airport. It also does not work if I plug the cat 5 cable directly into the Mac. Have repaired permissions, ran Onyx and reset the Airport card. Still no luck. Applecare is closed until tomorrow and the live chat help (live from Bombay) was no help.
Does anyone out there have any ideas or suggestions as to what may have happened or what I can do to restore my internet?
I checked and have the latest Airport software and no........I'm not posting this from the offending laptop, I'm using someone else's gear.
The widgets that need internet don't work and Software Update does not connect either.
Help Me Mr. Wizard!
Thanks,
Mike
6 iMacs and iBooks Mac OS X (10.4.3) Mucho Ramo

Turns out that the ISP assigned the same IP address to 3 seperate people and all three couldn't access the internet. Thanks to Applecare that gave the advice and got us through it.
Peace,
Mike

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I do have wifi connection but no internet, how is this possible? I logged in to the internet at my friends place and when I got home my own internet was not working anymore

I do have wifi connection but no internet, how is this possible? I logged in to the internet at my friends place and when I got home my own internet was not working anymore

This is possible to be connected to WiFi but not internet.
You connect to your modem/router via WiFi and whether it is connected to the internet or configured properly to route the internet to WiFi devices is a different story.
Now if you've already reset your WiFi (try disabling and enabling) and perhaps even restarting your MBP
Then make sure that your modem/router is connected to the internet.
You can try any other device, lights on the modem/router or use Eth cable to test.
Report back your findings.

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try switching off photo stream in System Preferences > iCloud
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Hi,
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Some things to try first:
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~~~~~~~~~~~~~~~~~~~~~~~~~
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
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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/
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http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
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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

What are the default settings for ethernet, shows connected but no internet

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I installed viber on my iPhone 5s. After entering my number, it says:" No Service It seems to be a problem connecting to viber's service.please check your connection and try again" Nevertheless I have connected to the internet. Could you please help me?

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You only have to clone your mac when using certain cable modem. You don't clone your mac when using dsl.
Greetings from Northern Ontario, Canada

Have wifi connection but no internet?

I have an Airport Extreme (version 7.6.4) in bridge mode as main network, this is connected via ethernet to an ADSL router (this allocates the ip addresses)
I then have 3 airport express extending teh network to improve the signal in different parts of the house. All the ip addresses are 10.0.0.x.
I have internet connectivity on my iMac (10.8.5) connected to the wifi network, however my Macbook Pro (also 10.8.5) and all my iOS devices (iphone 4s on iOS 6.1.2 and ipad 2 iOS 7.0.3) whilst having strong wifi connection do not have an internet connection. When I launch AirPort utility on the macbook pro and iOS devices it shows the network but the internet reflects as disconected, whereas on the iMac the internet is connected.
Any ideas what is causing this?

I have an Airport Extreme (version 7.6.4) in bridge mode as main network, this is connected via ethernet to an ADSL router (this allocates the ip addresses)
Since you have a router "upstream" from the AirPort Extreme, the Bridge Mode setting on the AirPort Extreme is the correct setting.
As you know, when the AirPort Extreme is set to "create a wireless network", the AirPort can be setup either in Router Mode or Bridge Mode.
This avoids a situation where you have two routers on the same network, with both of them are trying to provide DHCP and NAT services. Conflicts would be certain with two routers competing against each other.
I then have 3 airport express extending teh network to improve the signal in different parts of the house. All the ip addresses are 10.0.0.x.
Can you clarify whether the Expresses are "extending" the network wirelessly? If they are, then they are already in the correct Bridge Mode setting.
Or, are the Expresses "extending" by connecting back to the AriPort Extreme using wired Ethernet connections?
We need to do some more troubleshooting starting with one Express at a time.....but first need to understand how you have the Expresses connecting to the AirPort Extreme.
We assume that each Express is either the A1264 version or the current A1392 version. Is that correct?

My ipod touch shows I have wi fi connection but no internet access, what can I do about this?

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Try this first. In Settings > WiFi: Turn wi-ff, then turn it back again. If this does not work try Settings > General > Reset > Reset Network Settings.
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Would appreciate any help.
My JetPack 4G LTE mi-fi connects to the internet (3G or 4G) and shows that my devices are connected to it. However, I cannot get on the internet.
1) I have three different devices - two laptops and a smartphone. All three have the same problem.
2) I have a Sprint Mi-Fi that I use for a different business. All three devices can and do connect to that device and work properly on the internet during the same sessions in which they cannot connect on the Verizon JetPack. So it is not the devices I am trying to connect with.
3) The exact same thing has happened several times over the course of about 4 days and in two cities and two states - all three devices unable to connect via JetPack but connect fine through Sprint Mi-Fi. So it is not location or local network issue.
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5) Message on laptop wireless area shows connection but says "no internet access".
6) Under the wireless status or details, it says (on the list of info): "IPv4 no internet access" and "IPv6 no internet access".
7) I have done a battery pull with no effect.
8) I have done a factory reset (power up, remove cover, press reset button until long green light and short green light) with no effect.
9) After both battery pull and factory reset, I still show connected to 3G, all three devices connected, no internet access, and all three devices then work on the Sprint mi-fi.
10) Symptoms started about 4 days ago and have not changed since - it is not a come-and-go problem. It is not working at any time.
I am hoping to gosh to avoid a long ordeal with tech-support at Verizon. This is a company-issued device, so I could ask my company to take it up with Verizon, but I work remotely and access to the IT department is not that simple either. thought I would see if I am missing something simple. I hope I've given enough info for someone brighter than myself here can spot something I could do.
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Thank you for your response. I am having trouble logging back into this site to respond (I never created a User ID and don't know my cell phone number as it is a mi-fi and not a cell). I reregisterd for the forums only under a slight ID variation and will continue to do so for this dialog. Thanks very much.
The back of the Jetpack says SSID: "MiFI4620L Jetpack 89B4". I am currently using the device (since the problems began last week) in zip codes 49504 and 49503 - same symptom both places.
Thanks again.

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