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When you get syncing problems, as well as restarting your phone you may want to restart your fitbit using this procedure: https://help.fitbit.com/articles/en_US/Help_article/1186/
It does no harm and can sort out all sorts of issues and is often the best chance for getting fitbits syncing again. Only problem is that sometimes it doesn't work so it's recommended to try it at least 3 times.
Best AnswerDid everything as well as reset Fitbit, reset phone, deinstall and reinstall app on phone. Worked once, 658 am, will see if this continues. Very annoying and frustrating.
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