Login on your Tomato router.
On the left menu of the page, click VPN Tunneling, then click the OpenVPN Client.
Click on Client 1 and then Basic. Enter following values:
Check the box for Start with WAN.
Set Interface Type to: TAP
Set Protocol to: UDP
Set server address from this server list here: Server list , for example se-kis.privatevpn.com
Set Port to: 21000
Set Firewall to: Automatic
Set Authorization Mode to: TLS
Check the option for Username/Password Authentication.
Enter your PrivateVPN user name and password in the appropriate fields.
Username Authen. Only should be unchecked.
If you have Server is on same subnet then uncheck it and check Create NAT on tunnel. If you don't have Server is on same subnet and just check Create NAT on tunnel.
Step 2
Now click on Advanced and enter following settings:
Set Poll Interval to: 0
Redirect Internet traffic should be unchecked.
Set Accept DNS Configuration to Strict
Set Encryption Cipher to: Use Default
Set Compression to: Adaptive
Verify Server Certificate should be unchecked.
Enter following text in the Custom Configuration box: comp-lzo
Step 3
Now click on Keys and enter following value for Certificate Authority: