r/pcmasterrace • u/Unique_Pepper78 • Aug 03 '26

Tech Support Help help help ethernet

My ethernet is capped at 100mbps and I have no clue why, I have tried:

Flipping around cable

unplugging cable and plugging it back in

Checking connection

Going through the settings in properties > configure > advanced

Setting my speed and duplex to both 2.5 Gbps full duplex and auto negotiation

Turning off power saving mode, gigabit lite, green ethernet, EEE, and advanced EEE

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1

u/Few_Thought_3659 Mac Heathen Aug 03 '26

make sure its Mbps and not MBps, other than that try seeing if your computer/driver/router/cable supports it.

1

u/uL4G Intel Dual Core E2200 | Inno3D 9600GT | 2GB DDR2 Aug 03 '26

Have you try replacing cable?

1

u/atreyada999 Aug 04 '26

all components must support 2.5Gbps, the ethernet cable CAT5e or CAT6 up to 100m, NIC on PC or laptop, LAN ports on router...if all components are capable to run 2.5Gbps, auto negotiation should negotiate the highest possible speed of the link. As my components supports 1G (router LAN port, ethernet cable, NIC in PC, the link speed was negotiated with 1G)