No, I'm not in "assist me". I have accessed the Airport Utility in the applications file of my hard drive.
It's the Airport Utility - Network Setup. The first screen shows that the Airport Utility has found my Airport Extreme 801.22n. The next screen (when I click next), shows the Network name and password.
Hmm, unless you selected "Manual Setup" you will be in "Assist Me" mode. Regardless, I just want to be sure that we are seeing the same thing. Typically the "Assist Me" mode will take you through the configuration page by page. Whereas "Manual Setup" allows you to pick and choose which items you want to configure ... so I'm going to still assume that you are referring to pages within the AirPort Utility when going through "Assist Me."
The next screen says "Airport Utility has discovered existing wireless networks. Do you already have a wireless network? I have 3 choices as follows:
1) I have a wireless network and want to add Airport Extreme or want to replace existing device on my network.
2) I don't have a wireless network and want to create one
3) I want to connect Airport Extreme to my computer or network using Ethernet
It is obvious I do not want choice #3. Which of the other two do I choose?
Okay, here is where you really would rather go through the Manual Setup instead since all you want to do is change the Network Name. I suggest closing the Utility and not save any changes. Then follow these instructions to change the network name on your AEBSn:
Either connect to the AEBSn's wireless network, or temporarily connect your computer directly (using an Ethernet cable) to one of the LAN ports of the AEBSn, and then, using the AirPort Utility in Manual Setup, check these settings:
AirPort - Wireless
o Network Name: <Enter the preferred Network Name (SSID)>
o Click "Update" to write the new setting to the AEBSn and restart the base station.