19.02.2022 04:23, Rujbin wrote:
Hello,
i am just confused. When i use default MTU the Performance on Windows is VERY
poor. It is almost unuseable. It happens on multiple Windows devices. I started
using MTU 1280 for a while, but why is it only Windows with that issue? First,
the speed is limited to 100mbps maximum. Thats weird, when i use MTU 1280 i
have 1gbps. https://i.imgur.com/ELGOWDQ.png
In our case with default MTU (of 1420 iirc), in-tunnel performance is near
the direct pefrormance. When lowering MTU to 1280, the speed reduces a bit
but not much (I guess due to larger overhead due to smaller packet size).
This bug exists for a long time to me. I ran Wireguard on almost every
provider, (i didnt check if it happens on Azure) but this bug exists on
Hetzner, DigitalOcean, OVH. This is not normal. I am running the latest stable
version of Wireguard Windows. Kernel module on servers and BoringTun.
I don't see a bug here.
/mjt
