help: internet connectivity problem

[195decibels]

hey guys...
...first time on this side on TE...
...i'm not able to connect to internet through wifi on my laptop...
...although i'm able to connect to internet through LAN cable...
...also i'm able to connect all other devices for internet to my wifi router...
...help me connect my laptop to internet through wifi...
PS: yes wifi in lappy is enabled, i get full signal but a yellow exclamation mark on it

 

[puns]

when you right click on connection icon and choose troubleshoot problems , what message u see ?
All settings & password right in wireless network connection settings .

 

[195decibels]

settings...hmmm...i'm not sure..
password....yup its correct...
here are some options i get when i trouble shoot...
...pics are as attached.