do you know how load balance works? you should simply search on their website to get this: https://www.tp-link.com/en/faq-2079.html to know how should we test via the right mechanism.

I read a lot of sites about load balancing, also I saw many YouTube videos illustrating how to use. I am using speed.net or xfinity.com speed test sites as they are the most reliable sites for measuring speed. I think that I should do something with the configuration of TL-R480T+ router but I do not know what is it.
Thank you

If we use sppedtest.net to test the LOAD BALANCE, you'll never get the right result. AT first I also cannot understand why we should use the FAQ's weird mechanism to get. After reading again and again, I understand it is right.