Guys, is it possible to join 2 different WANS with different ISP and different IP addresses?

Hi Panda, Thank you for your reply. I'm a little bit confused about the source IP. Both WAN has a different Static IP. Which one should I input?

Model : Hardware Version : Firmware Version : ISP : Hi all, I have a TP Link Load Balancer TL-R480T+ configured as failover. Now, I want to reconfigure the settings to load balance again. I tried...