Depends upon how far away you have the ipad. I do 75' on 5 Ghz without any issues. If you're only able to do 2.4 Ghz, you might run into other devices interfering with the signal. (Pretty crowded band with wireless phones, printers, other wifi networks hanging around.) That said, my iphone 4S won't run 5 Ghz and generally works fine at 2.4 Ghz. (I have one of the later Airport Express that will do both frequencies at the same time.) You do need a unique name for each SSID device. (Wifi router, extender.) My Wifi router has different names for the two different bands. (NoInternetHere and NoInternetHere 5Ghz. You're welcome to use those names if you'd like.) For my ease, I set both up with the identical passphrase. (Easier to remember.) I don't give it out to others, but if they want control over their own monitor mixes, I will enter it in their phone. (Or ipad.) Just like I don't know my Son's network passphrase but can use my laptop at their home, knowledge of the actual password isn't required of the user. (It also controls who can access your controlling network.)
