I received a DDNS disconnection notification. What can I do?
I received a DDNS disconnection notification. What can I do?
Purpose
This article explains why you are receiving a DDNS disconnection notification and what you can do to troubleshoot the network connection.
Diagnosis
When DDNS > Heartbeat service is enabled, Synology DDNS service will regularly check if the external connection is normal. If your Synology device is disconnected from the Internet, you will receive a disconnection notification. This notification can be sent via:
- SMS
- Mobile
Resolution
If you frequently receive DDNS notifications about disconnection and connection restoration notifications, please follow the steps below:
- Contact your ISP to check if there is any network stability problem.
- Connect the Ethernet cable to another switch/router’s Ethernet port.
- Connect the Ethernet cable to another LAN port of the same Synology device.
- Change the Ethernet cables in your network.