引用:
My intel(R) Ethernet Controller I225-V is unable to work at 1GB or 2.5GB, which is what's advertised on the motherboard ROG-STRIX-Z490-E-GAMING, bought very recently with Asus as vendor.
I tried updating everything, even setting the negotiation manually to 1GB and 2.5GB with full duplex, still nothing, won't go up faster than 100mb/s, I'm using a cat6e cable so that's not the issue, my other computers on the same LAN are at 600mb/s and even with the wi-fi on any phone I can get up to 250mb/s so it's clearly an issue with the Ethernet controller/HW.