Archer C80 does not work on full duplex
Hi there,
The problem is that, if I test download only, LAN speed can reach 1000Mbit, and if I test upload only, 1000Mbit same.
However if I run upload on PC1 and download on PC2, each has 500Mbit speed, Gigabytes bandwidth was shared. The target machine for speed testing is a LAN server.
Moreover, if I run upload and download simultaneously on PC1, each side has only 200Mbit-300Mbit and the total is less than 500Mbit.
Same result when I test with iperf3 as shown in the pic. Total speed 1000Mbit when I do upload and download simultaneously.
The cable used are authentic CAT6 cable, and my LAN server has a NVMe SSD. The testing environment is not the weak point.
Is the problem from firmware settings, or the switch chip on motherboard? Thanks for all your help in advance.