speed through lan port and wifi decreased on TL-WR940N
I have TL-WR940N ver.3 router. I have internet speed out of the modem about 100-120Mbits. The signal then goes through a gigabit switch, which doesn`t alter the speed.
If I connect the laptop directly to the switch I have the same speed 100-120Mbits, but if I plug the cable to the router and then connect the router and the laptop via cable, I get about 60-65Mbits. Furthermore, If I connect to the wifi of the router I get around 30-35Mbits.
What am I doing wrong?