In this article covers issues encountered when starting SmartVPNClient in Windows.

1. SmartVPN client can’t be started

If only a cmd window pops up when you launch SmartVPN client, you can try the following:
a. Run SmartVPNService.exe in SmartVPN clinet folder
b. Enter cmd command ‘sc query SmartVPNService’ to check service state, it should be “STOPPED”
Then restart it by command ‘sc start SmartVPNService’ -> ‘sc stop SmartVPNService”, then run smartVPN client again.
c. Enter cmd command ‘tasklist’ to check session# of SmartVPNClient.exe, It should be any number except 0.
If it’s 0, please use command ‘taskkill /F /IM SmartVPNClient.exe'(admin right is required), then run smartVPN client again.


2. Can’t find VPPP driver while connecting SSL VPN

Please refer to our FAQ to reinstall the driver manually

3. Error “The PPP link control protocol terminated”

Ensure the Authentication Method between SmartVPN client and Vigor router are matched.
They can be found from Advanced Options in SmartVPN client VPN profile and VPN and Remote Access>PPP General Setup page in Vigor router.

If above solutions are not helpful, please provide following information for further investigation.
1.draytek_svc.log and ServiceLog.txt that are located in SmartVPN client folder
2.router’s syslog
3.Remote access with anydesk or RDP.


4. SSL VPN tunnel cannot be established to Vigor3900

SmartVPN settings are correct but get error message “Can’t connect to SSL VPN Tunnel server !!!”

SmartVPN Syslog will have the following messages:

2021-04-09 10:15:29]  **   {  ERROR  } Can’t connect to SSL VPN Tunnel server !!!

[2021-04-09 10:15:29]  **   Status: No connection

[2021-04-09 10:15:30]  **   Redial current profile !!!

[2021-04-09 10:15:51]  **   Type { SSL VPN Tunnel }

[2021-04-09 10:15:51]  **   IP Address {}

[2021-04-09 10:15:51]  **   User Name {username}

[2021-04-09 10:15:51]  **   Status: Connect < Office-SSL>

[2021-04-09 10:15:51]  **   Status: Open SSL Connection

[2021-04-09 10:15:57]  **   Status: Close SSL Connection

[2021-04-09 10:16:05]  **   {  ERROR  } Can’t connect to SSL VPN Tunnel server !!!


This is often caused by HTTPS access being blocked to the router from the Internet.

In Remote access control, there is a note that HTTPS will need to be enabled for incoming connections from the Internet under Management settings:

Go to “System Maintenance>>Access Control” menu and enable HTTPS Allow under Internet access control.


5. PPTP –  SSL & OpenVPN works but IPSEC Tunnel won’t open using SmartVPN

 Solution- Use High ( ESP ) security on SmartVPN client- see below