In control panels go to newtok, from there choose TCP/IP for that specific Nic card(or by itself if there are no devices listed), then choose properties.
This should bring up a seperate window.. in the ip address tab, it is set for obtain Ip address automatically. The only way to changes this would be to hard set an IP address to that machine.
The computer is otherwise waiting to recieve an IP from a DHCP server, and the timeout is probably about 30 secs.
If you manual set the IP address, unless otherwise given to you by an ISP or you network admin, use a PRIVATE(reserved for private networks) IP address. One that starts with a 10.x.x.x or 192.168.x.x.
Question:
1. Is this computer on a network? What kind of network is this computer going to be on. Home lan, company lan..?