1. Start > Run and type in cmd.
2. Type in ipconfig
You will see an address called Default Gateway.
Type in this address into your Internet Explorer or whatever
browser you use. Look around the settings. For changing the network
name, it's usually under General, or the first page you see when
you logged in.
For securing it, it's usually under Security. If it supports WPA2
and you are using Windows XP, please download and install this
update:
http://www.microsoft.com/downloads/details.aspx?familyid=662BB74D-E7C1-48D6-95EE-1459234F4483&displaylang=en
before setting up the WPA2 encryption.
If it doesn't, choose WPA-PSK and type in your
passphrase (something like your password) and save your
settings.
After that, try connecting to your wireless network. If you use
Windows Wireless, it will prompt you to enter your passphrase. Type
in that and tell it to remember.
If you are using some other software to manage your wireless
network, enter those configuration data via the software and
connect to your network.