zeroG:
Sorry for my late reply!::::SNIP::::
Thank you sonnyyu, i tried with that but nothing changed
@zeroG,
good news.
- your ethernet is working.
- your wireless is misconfigured.
Do as sonnyyu suggested and plug in the ethernet cable. If you have a router (or some other) that will use DHCP to assign an IP number when you plug in the cable, your are going to get a new IP number. You'll have to use the YunSerialTerminal program to get the new IP. After that you can login via SSH to work on the problem. It will be much easier that the YunSerialTerminal sketch.
Keep us updated, we'll walk you through this.
Jesse