I have the following network setup:
.----.
.---------. | == |
|.-"""""-.| |----| | |
|| || | == | _|___|_ / _______
|| || |----| : :/ : :
|'-.....-'| |::::|=== Eth ===:_______:=== Eth ===: :-- Fiber --
`"")---(""` |___.| :_______:
/:::::::::::" _ " tp-link
/:::=======:::`` Archer C6 Fiber optic
`"""""""""""""` '-' modem
Desktop Cable 1 Cable 2
What I’ve recently found interesting is that PC shows down/up speed of 255.56/264.11 (Mbps; link). This is way lower than the incoming (>1Gbps) and network cards/router physical limitations (both 1Gbps).
I tried connecting cable 2 directly to the PC – and it’s surprisingly 363.86/907.48 (Mbps; link)!
900+Mbps looks somewhat close to what I’ve expected… But why doesn’t it work with Archer C6 in the middle, which claims to be a Gigabit router?
I’ve already tried replacing Cable 1 with other cables, but the result is still the same.
So 2 questions here:
- The bottleneck looks to be the router, right? Or am I missing something else?
- What could be next debugging steps? Or it’s pretty much “contact support” now?
ps: just in case:
- Router has the latest firmware
- Desktop is quite old Win 10 with an old Realtek network card (PCIVEN_10EC&DEV_8168)
- Latest network drivers installed
