Airport will not connect to wifi (no IP address) router is working!

Hi
I need help. I have had same router for 2 years now and recently my macbook pro has been unable to connect or stay connected to internet. It either states connection timeout or no IP address. I have just come bak form mac store where they reinstalled operating system.
Please help - I have also spoken with Netcomm (router company) who confirmed everuthing is ok on their end

OP
A much easier advice that basically requires no thechnical skills, go to you nearest "Starbucks", neighbor, office or equivalent. Any place with a WiFi you can access. If you can connect there, the issue is most likely on the router-side of things.
Shootist007
What does the region setting in Language & Text have to do with connecting to or not connecting to a WiFi signal/network?
Well, it should not affect anything. But there is one issue you probably have not seen. I could not get a stable WiFi connection for almost a year, and this solved my problem. According to others here in the forums, this has solved the issue for them as well. It is a software issue, if you change individuall settings in the language formate your region gets set to "Custom". So, if you check your logs while connecting to the router you get a "country code" called X1 to X5, a "spare" code available for non-registered regions. Some routers cannot handle this and the symptom will be that the connection times-out or you keep getting prompted for your password, over and over again. The region should not matter, as long as it is not set to custom "Custom" with an "incompatable" router. As you said, as long as you have a "real" region, there is no issue. While connected through ethernet cable this affects nothing, only WiFi.
But thanks for your opinion...
And the Default IP for most routers on the market is not 192.168.0.x(xx). It is 192.168.1.x(xx). The only time I have seen it different was on Apple Airport products and that is 10.xxx.xxx.xxx.
Well, I don't know what your experience is, but in my book most personal users buy Linksys, Netgear or D-link, all of which has 192.168.0.1 or 192.168.1.1, feel free to check manufacturer info on this. OP: Google manufactorer and/or model AND IP and you'll get the adress you need.
So please follow John Th's advice. Thanks
The last thing I would do is Assign a Static IP address to your WiFi connection. There is a Hardware problem that needs to be fixed. Whether it is on/in your Mac or your router I don't know.
Well, I guess manually accessing your router and re-writing system information is less dangerous than clicking "new" on you locations menu, and it sounds much less complicated... But I agree, if you region is not "Custom" and you can access any other public/available WiFi, listen to John Th. But why would a static IP be "the last thing you would do"? Especially if you add this as a "new location" which can be easily deleted and revert to automatic without issues...
OP
Since I generally tend to take it personally when someone inferrs that I am incompetent, I'll leave this discussion here and stop following/commenting. I whish you the best of luck with solving your WiFi issues.
// Gus

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This step will erase all your settings in the Network preference pane. Make a note of them before you begin, and recreate them afterwards. It may be helpful to take screenshots of the preference pane.
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Go ▹ Go to Folder...
from the menu bar, paste into the box that opens (command-V). You won't see what you pasted because a line break is included. Press return.
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Then restore the iPod using the following
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It seems you've done some great troubleshooting so far. The following Knowledge Base article offers a few steps you may want to review, and it also provides some additional recommendations if the issue persists:
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http://support.apple.com/kb/ts1559
Resolution
Follow these steps to resolve the issue:
Restart your iOS device.
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Reset the network settings by tapping Settings > General > Reset > Reset Network Settings.
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Pedro.

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