I would like to know if somebody knows how to use an external network loopback adapter for test. It comes in form of a key ring- one side is Rj-12 male and the other side is Rj-45 female. I have search through different search engines and even asked the company who sold it to me to no availed.
I do some computer and network repairs since I retired. Even have some certifications under my belt. But nobody happens to have the answer to that one. Well if somebody has the answer to that I will be greatly appreciated. Thanks