Originally posted by sledger Well it's 'correct' for me and my experience. The card works very well in the other cameras. So, go figure
Have you upgraded the firmware for the EyeFi cards? Any upgrade for the cameras?
They are extremely finicky, as each firmware upgrade can alter their behavior. (as I was told directly from EyeFi).
Be sure you have the latest firmware.
Environment can have a bit of influence on the cards working as well. Not much you can do about that. But the EyeFi signal is pretty weak, as would be expected unless you want it to burn up inside your camera or perhaps make your batteries to go dry in minutes, so it doesn't take much to screw with it.
It is possible, like tclausen said, perhaps the card is bad?
EyeFi support has been pretty helpful, they may send replacement card to try. Can't hurt to ask.
It is not a perfect solution. In general, once I have the cards configured and working, they work well.
But the desktop software they have to configure the cards is just some of the worst design I've seen. The entire concept that you need to be connected to the Internet to change a setting on the card is beyond me. When I'm in the field (literally) 20 minutes from nowhere and I need a simple card change (lets say I want to xfer RAW instead of JPG), I need to drive into town and find Internet access to make that sort of change. Just complete BS!