If I choose System Preferences->Network, it shows the network name as WiMAX and I can't change it. If I click the Advanced button, I can change the name, which I have done - to TooraMAX. Clicking OK, I return to the main window but the name didn't change there. Some time later, I opened System Preferences->Network again, clicked on Advanced and the window now displays two networks, WiMAX and TooraMAX, both of which are shown as having WPA2 security.
If I then fire up Wi-Fi on another device (Kindle Touch), I'm still given the choice of two networks, both called WiMAX, one secured, the other not.
I guess I could wipe everything and start again but the initial Airpot and network set-up was such a nightmare that I shudder at the thought of going through it again.
The network is via an Apple Airport.