First run Source Diagnostics from the source's menu. Common causes: not on the same local network, a VPN or proxy taking over local addresses, a wrong user name or password, or no shared folder selected. Away from home you need a public address.
功能说明
Run Source Diagnostics first and follow the result: make sure you are on the same LAN, temporarily turn off VPN or proxy, re-enter credentials and select a shared folder.
More: A source won't connect, sign-in fails or no videos are found.