My XPERIA mini won't connect to the Internet through Wi-Fi

[#1]

I've got DLink Wi-Fi router at home. All computers need only the key and connect to the Internet without any problem.

But my new xperia mini wan't. It connects to the router, says: "Connected. Signal is very good." But it doesn't go to the Internet, says: "web-page is unavailable".

What could be wrong?

Thank you!

[#2]

Have you gone into Settings : Wireless controls: WiFi settings then Add WiFI networks?

[gwhispererz]

Did you try other website? Are you able to connect by gprs on that same website? Is Wi-Fi working with other devices? Do you have more than 1 browser (maybe try with another browser)?

I do not know whether this will work, anyway, you can try clearing your default browser's data and try again. Good luck.

[#4]

Yes, I've tried it...

[#5]

Yes, I did. I tried many sites, my notebook and friend's notebooks work with wi-fi without any problem.

But I have only one browser... It works using gprs but doesn't work using wi-fi. :-((

[gwhispererz]

By the way, is your phone on Android 1.6 or 2.1?

[#7]

2.1

[gwhispererz]

Try removing the Wi-Fi network on your phone, then add it again (Input Network SSID and Security)

[#9]

Thanks, but it didn't help... :-((

Web-pages are still unaviable...

[#10]

Network diagnostics are very difficult.  Let's start like so:

Go to Settings/Wireless&Networks/WiFi and UNcheck it

Wait a mo to make positively sure it's off.

Now REcheck WiFi and WATCH CLOSELY what is says in dim text underneath WiFi.

You should see

(1) Turning on WiFi...

(2) Obtaining IP Address from XXX

(3) Connected to XXX

How far do you get?  I assume that you do not see (3)?  Check your router - does it list the Xperia in its wireless client list?  Do you use MAC access controls (I do)?  If so, make sure to add the Xperia's MAC to your access control list.  For the initial test, I would suggest that you disable any encryption on your router (overrated anyway).  If you succeed w/o encryption, work your way up to WEP before you try WPA.

PS:  I cannot actually ascertain what 802.11 protocol the Xperia uses, so just make sure that you get your router to talk to as many as possibe out of a/b/g/n