Problem with Internet connection by wireless card

Good day
I have computer with D-Link DFE-520
SUSE 11.1, D-Link DIR-300 router
Router configurated to send IP by DHCP
Under Windows all working propetly
Under SUSE my wireless card receive IP
and i try set default gateway to router IP
Internet connection not worked and i cant ping my router
Can you help me pls?

Have a read of the stickies in the wireless section, any further problems,post in the wireless section