The switch in my house is outside the door, and there is only one main line of network cable in the

It's like you say you have a stomachache and go to the doctor, and the doctor knows that you have pain there without looking at it, something impossible. The network latency is the same, is it your computer card? Or is there a problem with the router?

Having trouble with the switch? Having a problem with the line? Having a problem with the source?

Or are you having problems with the settings? It's possible, this situation is generally eliminated step by step, according to your statement, I didn't rule it out, because you didn't test a thing alone, you are the computer is connected there, the computer is connected there, what if there is a problem with your computer? Then you have to say that there is no problem with the computer, have you tested it, how did you measure it, how did you make sure that there is no problem with your computer, and other devices are the same, so it seems that a simple local area network, the technology and experience contained in it are very much, not with you seemingly, as if, a general description proves that there is no problem with this thing.

What are you mainly sleepy now, or is the network cable not cloth or what?