I just purchased two 310XTs (one for me and my wife) and neither will connect via the Garmin Connect application. We just spent the day on a 10 mile hike, and would like to log the data.
We both are running 10.9.4, and have tried both cables, and connecting to both computers.
Some of the troubleshooting I've read suggests doing a hard reset of the device (after making sure sync information is turned on), but I find this ridiculous. I've had these devices less than 72 hours. If they are already unable to sync with a computer, why did I buy them?