Why is the internet connection slow?

Question

Computer networks

There are 2 computers connected to the same router. One has a speed of 300mb, the other has 60mb. Both have a gigabit network card. Why does the second computer have a speed of only 60? No proxy or vpn.

Answer 1

Throw a big file from one computer to another (not many files). Preferably a gig file or larger and see the speed. It is necessary to throw on the local. So you can identify a problem with a computer or network card.
If everything flies - try to offnut the fast computer from the router and then try to test the speed of the slow one.
It is also not entirely clear whether they are loading something at the same time or one is idle and the other is loading?

Answer 2

Let's guess, 300mb pc with SSD and 60mb pc with HDD