Internal connection between two PCs seems to max at 50 MB/s

King Mustard · Apr 18, 2021

PC (wired)

On-board Realtek RTL8111H Gigabit NIC (2014 model)
Wired directly to a BT Smart Hub 1 802.11ac wireless router
Windows Settings shows a link speed of 1000/1000 Mbps

Server (wireless)

Addon XWP3000R 802.11ax wireless NIC
Latest Intel AX200 drivers (v22.40.0, dated March 2021)
Wirelessly connected to the BT Smart Hub 1 wireless router
Windows Settings shows a link speed of 866/866 Mbps
Appears to have full wireless signal strength

When I transfer files from the PC to the server, the speed varies between roughly 30 MB/s and 70 MB/s (very variable, even during the same transfer).

When I transfer files from the server to the PC, I get a constant 47 MB/s transfer speed. I was expecting (hoping?) for around 120 MB/s (Gigabit).

Any ideas?

hat · Apr 18, 2021

Any way to get the server on wired Ethernet?

Vya Domus · Apr 18, 2021

The server is connected wirelessly, right ? Then it sounds about right to me, 70MB/s is about 500Mbps, you're never going to reach that 866Mpbs speed in practice on a Wi-Fi connection.

londiste · Apr 18, 2021

hat said:
Any way to get the server on wired Ethernet?

This.

Wireless inherently is not able to guarantee or hold speed that is anywhere near its (maximum) spec. Well, maybe when devices are side-by-side and there are few other devices at the same frequencies. In which case, a short cable for 1Gbit Ethernet would still be a better alternative

At the same time wired connection - assuming proper cable - runs at the spec speed. Today, even low-end 1Gbit devices should be relatively problem free.

DeathtoGnomes · Apr 18, 2021

Vya Domus said:
The server is connected wirelessly, right ? Then it sounds about right to me, 70MB/s is about 500Mbps, you're never going to reach that 866Mpbs speed in practice on a Wi-Fi connection.

yep MB/s is a different measurement than Mbps.

I'm guessing the two engineers that came up with those were neighbors and hated each other.. :rolleyes:

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Internal connection between two PCs seems to max at 50 MB/s

King Mustard

hat

Enthusiast

Vya Domus

londiste

DeathtoGnomes