If you receive this error click OK and select Search from the menu bar. The screen should populate with any Synology devices on your network.
If devices do not appear, make sure they are available on the network. Open Windows File Explorer and expand the NETWORK. Synology devices should appear here. If your Synology devices do not appear, ensure you are using the correct network settings.
The SMB (Server Message Block) should be enabled. SMB is a protocol that allows Windows based computers to connect and share files on the same network. To check your SMB settings move your cursor to the Type here to search box and type windows features. Select Turn Windows Features on and off.
Scroll down to SMB. Make sure SMB Direct is checked.
Click the plus sign to expand SMB 1.0/CIFS File Sharing Support
Make sure SMB 1.0/CIFS Automatic Removal and SMB 1.0/CIFS Client are checked. You must restart your computer before any changes take effect.