I ended up going to the Genius Bar at the Apple Store, taking my Airport Express with me. It was working fine. Not completely sure about what he did next, but he somehow created a new connection that worked fine once I got home.
If you can't do this you might try calling Apple Tech Support...
10.10.1 came out today. I performed the update ... and nothing changed. Still cannot connect without Ethernet. Now even WITH Ethernet the AX light won't stay solid green -- it keeps flipping between green and flashing amber.
Is AirPort Express an evil tool designed to drive Mac users crazy? I'm thinking "Yes."
Here's my current setup:
iMac 27" mid-2010 w/16 GB RAM
I have an Xfinity X1 modem connected to my router via Ethernet. I use an Airport Express exclusively to get audio from my iMac to my sound system via...
Doing the power cycle -- shutting down and unplugging EVERYTHING, then restarting and adding devices one by one -- with a long (several hour) shut down brought the ports back. There were still some hiccups but, fingers crossed, everything seems to be up to spec for now. I just hope it stays that...
I'm having the exact same problem. I put a drive in a brand new OWC Mercury Elite Pro case. It showed up at first in the Finder but when I tried to access the files, the Finder hung, wouldn't relaunch and I was forced to reboot. Since then I've been getting the "unable to list" message...
Got some weird behavior from my OS today. Tried verifying permissions with Disc Utility and got the "No Valid Packages" message. Checked the Apple site and this forum and found references to BaseSystem.pkg in Library/Receipts. This package was, in fact, already in my Receipts folder. Tried...