Default [Q] No sync between play.google.com and google play store app

ROM: CyanogenMod 10.2.0
SGS3 i9300

Despite I'm logged in to my google account, on the web site my device is not recognized, so can't install apps from there, use the tracking service, etc.
Already have flashed the right Gapps file, re flashed it, delete and logg in again my account, delete play store cache and data,nothing seems to work.
On the phone, google play store works fine, is just the link between both plataforms.

Please, if someone has experienced the same problem and succeed solving it, help