MacAir- Wifii "connected" no loading or "time out" errors

I have a MacAir and all of the sudden the Wifii wouldn't connect to the wifii server at school.
Other students were having no issues. It would say "time out" error.
Then it would connect to the guest network and full bars would show but wont load any pages.
My ipad is able to connect normally. Therefore it must be my OS on the MacAir.
If followed other support threads and reset the network but still having the same issue
I really need to get this fixed if possible, any help would be appreciated. Thank you~

Hi aimomo!
I have a few articles here for you that will help you troubleshoot this issue with your Wi-Fi connection:
Wi-Fi: How to troubleshoot Wi-Fi connectivity
http://support.apple.com/kb/HT4628
Non-responsive DNS server or invalid DNS configuration can cause long delay before webpages load
http://support.apple.com/kb/ts2296
Safari 5.0.1 or later: Slow or partial webpage loading, or webpage cannot be found
http://support.apple.com/kb/ts3408
Safari 6 (OS X Mountain Lion): If Safari can’t open a website
http://support.apple.com/kb/PH11883
A few of these articles are for specific circumstances related to loading pages in Safari, but I thought they may be helpful if it seems like your issue is similar to what is described in the articles. Thanks for being a part of the Apple Support Communities!
Regards,
Braden

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/people/michal.krawczyk2/blog/2006/06/08/xi-timeouts-timeouts-timeouts
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HT4634 Why does my connection to email server time out on default port?

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Hi there,
There may be a conflict between the network settings and your devices. I would recommend taking a look at the article below and comparing that to your routers current settings.
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http://support.apple.com/kb/ht4199
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Thanks for your reply Kalyan,
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My oracle SOA version is 10.1.3.1. I have created a application ( say sampleApplication) in jdeveloper (webservice from wsdl). When deploying the application to the application server it takes a long time to complete (approx 30 mins) but it gets deployed without error. I got a perm gen error and I stopped the SOA. When started it again after incresing the perm gen size, the SOA couldnt start. Got the following error
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Hi James,
Thank You for your suggestion. I have some doubts.
1) You suggested to revert back to old parameter and restart jDEV. What is the parameter i need to revert? I have only changed the max,min and perm size in opmn.xml because I keep getting perm gen error quite often. Did you mean those parameters ?
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Ananth
Edited by: user8655700 on Sep 14, 2009 10:25 PM

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We are trying to invoke a Web Service from BPEL Process (10.1.3.3.0) and we received below time out error message in em console.
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Hi Suma,
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Hi Prateek,
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