I recently purchased a SBG900 Motorola cable modem/router to use with my IMAC. For a beginner, I found the setup instructions woefully lacking. I have managed to set up an "unsecure" wireless connection with the 900. It works fine for websurfing. I cannot however send email. When I do, I get a pop up box saying that my email connection to the Apple server on port 25 has timed out. I am able to receive email just fine. I wanted to sort this problem out before attempting to "secure" the network. I'm guessing its somewhere in the Motorola setup but I'm not sure where to start. Any suggestions? Thanks!