The wireless network -- both home and guest -- are in the same building. I'm simply trying to get the wireless guest network to reach all corners just like my home network. I don't know anything about VLAN. Networking in general is a kind of wizardry that confuses and confounds me to no end. I figured out the problem. It was another IT-10-T (idiot) error. Configuring the guest network on the AP, I outsmarted myself by copying and pasting from the C7. I copied the SSID. I copied the password. Unfortunately, in the copy/paste, the AP ended up with a space after the password. A SPACE!!!!! Once I removed the space, everything works. I can log in and get internet access with no problems. I wanted to confirm that my Guest Network is indeed separate from my Home Network (i.e., no access to anything on my home network). The easiest way for me to confirm this was by trying to connect to the Harmony Hub in my home theater. The Harmony Hub connects to my home network on the 2.4GHz band. Devices on my home network, whether on band 2.4 or 5GHZ, can connect to it. Note that each band has its own, unique SSID. However, once I switch to the Guest Network, which is on the same band, my devices can no longer see the Harmony Hub.