leonidus2012,
Its not really helpful to us if you post what your processor is, and how much ram you have, Because that really doesnt matter in the case of a DHCP problem.
Chances are that you have set up a Static IP through Control Panel, But not set up the DNS to go with it.
There are a few options for a DNS, You can use your ISPs (I.E who provides your internet, For me, VodafoneAU), Or you can use Googles DNS.
Now, To fix your issue, I reccomend that you check the following and post the results here:
Start Menu > Control Panel > Network and Internet > Network and Sharing Center > Change Adapter Settings (on the Right).
From there, You should be able to find the appropriate adapter... (LAN, or WLAN).
Select the appropriate adapter, And double click it
Double Click TCP/IP Properties
and ensure BOTH options are set to Optain Automatically.
Ben