I have two WD Live units.
The first one isn’t wireless - its network cable only. It does have Pandora on it and I have my account on it etc. It plays perfectly on Pandora.
I have a second WD Live which is a slightly larger box and it has both wireless and network cable. I use it on wireless. It doesn’t show Pandora on it.
They were purchased approx 12 months apart.
They both are updated whenever there’s new firmware available. ie; they are both on the current firmware.
Thats what leads me to say they aren’t all on the same firmware, or, for some reason my wireless unit is being geographically tagged while my smaller WD Live isn’t.