The IP address my computer is getting is 169.254.x.x.
Draw to you attention that :
1- I have got problem with my Laptop (Wired and Wireless) at work and at home.
2- At work only me (i.e. Only my laptop)
3- At home (ADSL Linksys) only my Laptop not the Desktop.
I do not have any firewall, and PC gets ip address through DHCP.