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signal detected but no internet

I recently moved to Japan and have set up my airport express with a new service provider. My computer will pick up the signal but despite all troubleshooting efforts my other devices (IPAD, IPAD2, IPHONES) are detecting the signal but not connecting to the internet. Please help.

iOS 5.1.1

Posted on Jun 9, 2012 6:47 PM

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Posted on Jun 9, 2012 7:25 PM

What happens if you shut down your computer and leave it off?


If you power down and restart the AirPort Express while leaving the computer off, can any other devices connect now?


If yes, which one?


Was the one that connected the first one that you tried?

12 replies

Jun 9, 2012 7:51 PM in response to Kibbles1

We previously tried that and only the MacBook stills connects. We also have another MacBook in the house and that will not connect either. All devices that cannot connect to the internet are saying they have a self addressed IP address and cannot connect. Is it possible that the router portion of the Time Capsule may be bad?

Jun 9, 2012 8:00 PM in response to Kibbles1

Sorry, I am confused. Your first post mentioned an AirPort Express as your router and now you are asking about the Time Capsule as a router.


Which device is performing routing duties on your network?


Can you tell us something about the modem that the provider has furnished? A make and model number might help us try to understand how you have the network configured.

Jun 9, 2012 8:53 PM in response to Kibbles1

This appears to be a standard cable modem, but when I enter the exact model number on a search to learn more about this, I get Internet pages in Japanese. I will have to assume that this is the same basic model as a normal SB5101 Motorola.


Do you have a Mac there with AirPort Utility installed?


AirPort Utility is located as follows:


Macintosh HD > Applications > Utilities > AirPort Utility


If yes, open AirPort Utility, click the AirPort Utility menu just to the right of the Apple icon in the upper left corner of the screen and then click About AirPort Utility. What version of AirPort Utility do you have?

Jun 9, 2012 9:04 PM in response to Kibbles1

Open AirPort Utility, select the Time Capsule and click Manual Setup

Click the Internet icon, then click the Internet Connection tab

Connect Using should read Ethernet

Connection Sharing should read Share a public IP address. If it does not, change it to read as such

Click Update and wait 30 seconds for the Time Capsule to restart


Power off the cable modem, Time Capsule and all other network devices

Wait 10 minutes

Power up the modem first and let it run by itself for a full minute

Power up the Time Capsule the same way

Power up other devices the same way until everything is powered back up

Check the network again to see if multiple devices can connect.



User uploaded file

signal detected but no internet

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