Trouver ca sur un autre forum ,désolé en anglais...
There is an issue with the Synology DDNS servers at the moment so your hostname and MyDS account may be temporarily unavailable. As a workaround for now you will need to access it through your WAN IP address instead of hostname. Synology DDNS Service was undergoing emergency maintenance from 11:00 to 20:00 GMT+8 on 06/14, resulting in temporarily unavailable services to areas of Synology NAS. This maintenance affected Synology NAS features including QuickConnect, DDNS, and Push notifications which may be intermittently unavailable. In addition, MyDS website was also affected. Services have been restored to QuickConnect, DDNS, and Push Notifications. To check and keep regular updates on our service you can check here: http://www.synology.com/en-global/suppo ... ogyService
Pour l'instant je peux atteindre mon ds214 via ddns de synology mais si je regarde mes informations inscrites sur le site myds,il indique une perte de connection réseau avec un point rouge à coté de mon adresse ip publique ....bizarre