No browsers connection

I owned an emachine notebook; I am facing some hard time getting my machine to browse on the internet lately.

Here is the issue; I have been having this machine for years, to be precise since 2010 and everything have been really good.

But since I move to the US from Africa, all my browser can't just load up a page anymore; I try troubleshooting but their seem to be not a problem detected; the notification on the toolbar indicates that I have an internet access from the network but unfortunately No page can completely load up on either of my internet browser, be it Firefox, opera, Google chrome, or internet explorer; I also try updating them but this however still does not resolve.

Could any of your support team please help me find appreciate solution in order to resolve this?
Manufacturer: eMachine
Model: E525
Processor: Celeron ® Dual-Core CPU T3000 @ 1.80GHz 1.79 GHz
Installed Memory (RAM): 2.00 GB
System Type: 32-bit
Windows edition: Windows 7 Ultimate
Network adapters: Atheros AR5007EG Wireless Network adapters
Atheros AR8132 PCI-E Fast Ethernet Controller (NDIS 6.20)


Thanks so much.