I bought this device because TP-Link recommended this device claiming it would meet my needs and I'm now beging to doubt their recommendation. I've tried firmware from 1.1.1 to 1.3.1, I can't find one

Frustration and griping cause this is way more complicated than it should be.. To put it plainly, decent documentation does not exist and so far, a firmware upgrade that gives me a loopback option in