A:AnswerYou could try an adapter (RJ11 [phone] to RJ45 [ethernet]) but I cannot confirm that would work. You need to call AT&T and ask them if you can use their connection on a cable modem. Good luck!
A:Answeryes, actually you have a guest account for each 2.4 and 5 Ghz - you can enable both or just what you need. Same goes for the "family" wifi. However, you'll have 2 SSID's for each... 4 in total