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Pointless app. Un- Install it then double check your APN settings.
^^ my opinion, for what its worth.
How would I do that?
Menu>Settings>Wireless and Networks>Mobile Networks>APN
These are the "login" details if you like for your mobile network. Without them you cannot connect. How juice defender works is it changes these settings at times, to prevent things connecting.

Answering my own question yes it is
If JD is set to enable data for 3 minutes every 15 mins unless K9 polls within this period you're stuffed basically.
So it's down to chance whether your JD & K9 are set to be "on" at the same time.
Think I'll uninstall it unless anyone knows of a work around?
