Chris,
In order to see your cameras online, you need to port forward a couple of ports on your router (depending on the QSEE product number) to allow video traffic thru the router.
Also, you need more bandwidth in order to see all your cameras online. Remember, you are treaming video from 4,8 or 16 cameras down the pipe. That is a lot of data. You need at least 1 MB/sec bandwidth for a 4 or 8 camera system. You need at least 2 MB/sec bandwidth for a 16 camera system. I hope this sheds some light to your problems.
QSEE Support