I am sorry for what seems to have been discussed in numerous posts but even after all the reading and googling for some reason I still cant fathom out what I am doing wrong. I hope someone can help.

I am trying to connect my HD box to an airport express which is acting as a bridge to an airport extreme base station. The station ethernet linked to the sky modem/ router (extreme offers a better wireless connection).

I cannot work out the settings for the life of me. Every time i manually put in a DNS or Ip address the network is not found. Anytime+ works perfectly when wired directly to the sky router.

Are there some standard settings I am missing out?

thanks in advance