Computer wont connect to internet.?

The best thing is to start from scratch. You don't say whether a laptop or desktop. First uming desktop & if XP was just installed those addresses will be missing. If you are wired to a router that has been reset get hold of the manual (online if you can via other pc) There will be a default gateway sometimes 192.168.0.1. but each router make has one for new install. Log in via browser & follow the manual or better use installation disk. Very important to get access codes from your ISP try help line if you need. Second if network running ok with desktop your wireless laptop should see the the router if SID is broadcasting & if wireless is enabled ok. If router is security protected you will need pword to get in. If desperate phone router maker's helpline. Good luck!