connection, does anybody know why I can not get wireless connection, before, whenever i start my laptop, it will automatically get connected with my wilreless rounter, but now, even the signal icon shows that the signal is very strong, i can not get connected, I found out that there's no default DNS and default gateway, I clicked repair key, it still don't work. this almost drive me crazy, a computer without network is useless, please help
by the way, the rounter works fine, since I can get online with another laptop