In your iPaid, go into settings, Wi_fi and see the networks appear in the Wi-fi pane you may see a number of these depending on your neighborhood. Look for one that doesn't have a lock symbol in front of it that has 2 or 3 bars in the signal meter "cone" and choose that. Note if you get a number of unlocked networks well. . . Your broadband installer may have givern it your last name or some name you told them to use.
Another way is to use the web browser on your computer to go to http://192.168.1.1 where it should ask you for a password (most default to admin/admin or admin/(hit enter) and you should be able to poke around, find your wireless network, name it as you see fit and embed WEP2 encryption (to password protect (IOW lock) your network from outsiders).
Once you have accepted the network in your iPaid (and provided the password) it will no longer prompt you to join this "known" network it will auto connect for you
Don "hope this helps" Bolton
It sounds like your wireless "Gateway" is a wireless router. [problem solved]