I have a Garmin Forerunner 410. I used to use the Communicator plugin and Garmin Training Center application to send multiple workouts to the device. Worked fine.
Now I'm using the Garmin Express/Garmin Connect since it seems Communicator is no longer supported. Plus I like the automatic uploading of workouts and web interface. But I have lost the ability to send multiple workouts.
On Garmin Connect, from the Workouts menu I can view any created workout and send it to the device. It overwrites any existing workouts already stored on the device. So it works, but it's kind of a drag to send one day's workout at a time.
But when I'm in the Calendar on Garmin Connect, I select "Send to Device" to send multiple scheduled workouts to the device, and after a longish delay I get a message that the sync failed.
I've recently updated the Garmin Express software to the latest version. Express tells me that the Forerunner is running its latest version. Today I did a hard reset of the device but the problem persists.
Thanks in advance for any clues.