Wireless network Connected, but no internet connection

The router im using is Xavi 7868r....my desktop is wired to it...and it connects fine...i can browse the internet and everything.... now my second desktop which is connected via wireless card....was working fine too...and then it suddenly droped...and my internet connection stoped, it still shows that its connected to the network..with excellent signal.... i cant connect to the router's menu from 192.168.1.1... I have tried to set it to obtain all adresses automaticly...but this time it will detect the network..but not connect to it
Hope you guys can help, thanks in advance!

Hi, I am having the same problem. here is my info. Also, the only DNS info shown was my providers .com address

For IPv4 address

with 32 bytes of data:
bytes=32 time<1ms TTL=128
bytes=32 time<1ms TTL=128
bytes=32 time<1ms TTL=128
bytes=32 time<1ms TTL=128

Ping statistics
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms



For Gateway address:

32 bytes of data:
bytes=32 time=2ms TTL=64
bytes=32 time=1ms TTL=64
bytes=32 time=1ms TTL=64
bytes=32 time=1ms TTL=64

Ping statistics
Packets: Sent = 4, Received = 4, Lost = 0 (0%
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 2ms, Average = 1ms