Synology

Mount a Synology NAS as a Windows drive over WebDAV. Install the WebDAV Server package in DSM, and set up DDNS to reach the NAS from outside your network.

Before you begin

Prepare the following in advance:

• Install and enable the WebDAV Server package in DSM.
• For access from outside your network, set up DDNS: DSM → Control Panel → External Access → DDNS → Add.
• Default WebDAV ports: 5005 (http) / 5006 (https).

Help from Synology

• How do I access files on Synology NAS with WebDAV?
• Frequently asked questions about Synology DDNS service

Connect

1. Click Add in the toolbar.
2. Choose NAS → Synology.
3. Select https, enter the server address (DDNS hostname or IP) and port, then your DSM username and password.
4. Pick the TLS/SSL version matching your DSM setting, and click Connect.

Settings

Setting	Description	Default
Protocol	https or http	https
Address / Port	NAS host and WebDAV port	5006 (https)
Path	Shared folder mounted as the drive root	all shares
TLS/SSL	TLS version used for https	auto
Timeout	Seconds to wait for a server response	—
Read-only	Blocks writes to the mounted drive	off

Behavior & limits

• DSM's TLS/SSL profile level decides which TLS versions the NAS accepts (Control Panel → Security → Advanced): Modern = TLS 1.3 only, Intermediate = 1.2/1.3, Old backward = 1.0–1.3. Match RaiDrive's TLS/SSL setting to it — see Synology: TLS/SSL profile level.
• DSM shared-folder permissions are enforced on the drive.

Troubleshooting

Symptom	Cause	Fix
Connection refused	WebDAV Server package not running	Start/install the package in DSM
TLS handshake fails	DSM profile set to Modern, old TLS selected	Select TLS 1.3, or lower the DSM profile level
Works on LAN only	Ports 5005/5006 not forwarded	Forward the port on your router; use the DDNS hostname
Trying to connect via QuickConnect fails	Synology QuickConnect does not support WebDAV/SFTP/FTP	Use a DDNS hostname (or IP) and the WebDAV port instead — see forum thread