Airport Utility cannot see Airport Express
So, I suspected network interference. I appreciate and understand the suggestion to simply change the channel in Airport Utility. The problem with that is that Airport Utility cannot even find the Airport Express. It scans and (almost) never sees it. In the minority of time in which my network does work, I have tried it again and it might recognize it, but when I try to make changes, it goes into an endless cycle of "reading configuration" and stops there, leaving me unable to change the channel (or make any other changes). Posters on other threads have felt this might be related to either the firmware (7.3.1) or the OS.
The oddest point is that Airport Utility "sees" the name of the network but cannot join, and cannot seem to connect to the Express creating the network to effect changes.
Any suggestions? Any additional settings I could tweak (AppleTalk is on, 802.1x login is enabled)? Any need to do a hard reset of the Express? Exchange it for a new device? Anything? Thanks.
MacBook, Mac OS X (10.5.2)