Thank you all for the suggestions.

Yesterday's ride did not auto upload but today's ride uploaded just fine. The only change I made between yesterday and today was that I found the setting for automatic uploads, toggled off then on again. I'm using the 5.3 software update and my bluetooth connections were working properly during the period when auto uploads were not functioning. I suspect it was related to the software update - but who knows. I have read a lot of online discussions about the Garmin products and complaints of problems following updates and other glitches are not unheard of. I'm not sure what really caused this but it was not a big deal.

Bgrider.