I am curious about your set up. Do you have two physical connections to your ISP or one connection but two IP's? If you have two physical connections, you'll probably need 2 NIC's for your WAN and third one for your LAN. You can then use the Multi-WAN module to do the load balancing. The documentation is a little out of date so I'll try updating it sometime.

If you only have one WAN NIC there is a chance that you can get it to work if you have a VLAN capable switch but this is a more complex set up.

exactly my Server has only one WAN NIC, and i have two physical connection from one ISP.
take a look on this diagram let me know if i am correct. and my server has this two interface:


Add VLAN Interface

Add Virtual Interface

please find the diagram attached and let me know if i can proceed in this way.

I think that would only work if the switch were a VLAN capable L2 switch and then you'd need to define different VLAN's in ClearOS for each WAN connection and let the switch do the physical splitting of the VLAN packets into separate interfaces.

To get MultiWAN to work you will need separate physical or logical interfaces in ClearOS