Garmin express problems with Forerunner 405cx

AEROFPV

I just tested sending a workout from Connect to my Forerunner 405 with no errors. How was your workout created? Did you create it manually or from an activity? Is it just one workout that fails to send or all? Have you tried creating a short test workout to see if it successfully sends to the device? Are you sending the workout from the Calendar or from the Workouts page? Do activities on the Forerunner 405CX upload or do they give an error as well? Do you have any failed transfers in the PendingSyncDownloads folder on your Mac? If so, trash any files still in this folder and empty the trash on your Mac. This folder can be found here:

/Users/Username/Library/Application Support/Garmin/Express/RegisteredDevices/Unit ID/PendingSyncDownloads

The user Library folder is hidden by default in Mac OS 10.7 and higher. To open the user Library folder:

• Open Finder
  
• Click Go (at top of menu bar)
  
• Select Home
  
• Click Go (at top of menu bar)
  
• Click Go to Folder
  
• Type Library
  
• Click Go button
  

Try removing the device from Garmin Express and Garmin Connect and re-pair it: How do I delete a fitness device from Garmin Express?. Does the workout send after that?

If you are still unable to send your workout, contact Product Support by phone for further assistance.

Lisa

Thanks for your detailed explanation, I´ll try to answer to your questions:

How was your workout created? Did you create it manually or from an activity?
I created manually from connect.
Is it just one workout that fails to send or all?
All the trials I´ve made with workouts do not send it to the watch
Have you tried creating a short test workout to see if it successfully sends to the device?
Yes, that´s the problem why we´re here
Are you sending the workout from the Calendar or from the Workouts page?
Tried both without success
Do activities on the Forerunner 405CX upload or do they give an error as well?
The upload is correct without any problem
Do you have any failed transfers in the PendingSyncDownloads folder on your Mac?
Yes I did, now following the procedure you´ve explained I don´t
Try removing the device from Garmin Express and Garmin Connect and re-pair it: How do I delete a fitness device from Garmin Express?. Does the workout send after that?
I tried all the procedure you´ve described, and still no luck,same problems.