Xbpx Live Modem has 1 ethernet jack?

Question

can i still play xbox live, if not what do i do

Answer 1

CAUSE

This error message indicates that one of the following conditions is true:• The IP address could not be obtained from your Internet service provider (ISP), from a network device (for example, from an Internet router), or from the Dynamic Host Configuration Protocol (DHCP) server.

• The IP values that you entered manually in the Dashboard are incorrect.  

read all the details from this website!!!!

http://support.microsoft.com/kb/908885