I have asked this before and got nowhere. Using my 405, I can upload my activities using both ANT Agent and Garmin Express but no tracks are uploaded using either method. I have tried this using firefox, chrome, and IE and get nothing. What is going on here?
I looked through your activities and it appears the watch is not creating valid files. I suggest you delete the device from Express, Master Reset it then add again.
How do I delete a fitness device from Garmin Express?
How do I master reset my Forerunner 410, 405CX or 405?
If you continue to have troubles, please contact Garmin Product Support by phone for a more thorough troubleshooting. Again I am sorry for the troubles. Curt