yep, not working for me. It's so frustrating because you never know if it is something specifically related to you or a Garmin issue. I really wish they would put something obvious on the GC site or on the forum so that we didn't spend hours trying to resolve an issue that isn't local.
had a 5hour plus cycle recorded on 301xt, tried to upload last night Sunday, London seemed to transfer ok, but not on connect site, wiped from device, and can't find data in my mbp !!!!! Garmin your software is crap.
Sometimes I have problem to uploading data with the new website interface of garmin connect (It didn't recognize my device). In these cases, I must use the old website interface.
The Garmin Connect service went down at about 9pm last night and was down for at least an hour. It was pretty easy to tell; all you had to do was point your browser to http://connect.garmin.com and it would error out. So that is why your workouts didn't upload.
If you are using Garmin Express, you should be able to connect your device and do a sync. I'm not sure if that will work if the activities have been deleted off of your device though. Perhaps it would be best to disable the option to delete data from the device after syncing so it doesn't happen again.