The original post: /r/homenetworking by /u/Dzinsham on 2025-03-06 18:25:03.

Hello guys! I just finished building a new pc with Aorus x870e PRO ICE motherboard and the lan speeds (downloading and uploading from/to another pc) are now 12.5 mb/s (exactly 100mbits per second I believe). I’m on a 1gbit internet and it was like 100-120 mb/s before the new motherboard. The internet speeds are just fine, about 950mbit/s (same as before).

I have tried reinstalling LAN drivers, changing the auto-negotiating to 1gb full duplex, disabling power saving stuff etc. with no luck.

Basically nothing has changed except the motherboard and the LAN speed are now down like 10 times. The other PC is downloading/uploading at max capability of my LAN.

Help