Not sure if it's the garmin connect settings or my new garmin (changed to 310 from my old 305) but the elevation infomation looks "Cut" and inccorect.
I'm attaching the screenshots.
any ideas what can cause this ? :confused:
I've got exactly the same problem. I don't whether you'll get the same as me if you change to miles and feet, but it is always exactly at the mile markers where the height drops to zero.