Problem with Asus B350 plus slow wired internet connection

F5F Stay Refreshed Power Users Networks Problem with Asus B350 plus slow wired internet connection

thetimandu13
Junior Member

11-10-2025, 04:53 PM

I link PC to router via LAN using a 500MB broadband model; the LAN port indicator frequently turns red (occasionally green) and the connection drops from 500Mb to 100Mb during speed tests. Switching the same cable to another PC works without issues. After reinstalling Windows and drives, the problem persists. What might be causing this?

thetimandu13

11-10-2025, 04:53 PM #1

Miyuumi
Senior Member

543

11-10-2025, 04:53 PM

Checking wireless functionality now.

Miyuumi

11-10-2025, 04:53 PM #2

Checking wireless functionality now.

BarryBarnes
Member

11-10-2025, 04:53 PM

Consider using a different Ethernet cable. The issue here involves auto-negotiation between your router/switch and your PC. It might stem from a faulty cable wiring or a malfunctioning port on either device, so check both possibilities.

BarryBarnes

11-10-2025, 04:53 PM #3

992x
Senior Member

506

11-10-2025, 04:53 PM

The problem was with Windows updates. Thank you for Windows. The fix came from the Realtek driver available on the motherboard site that was just updated.

992x

11-10-2025, 04:53 PM #4

The problem was with Windows updates. Thank you for Windows. The fix came from the Realtek driver available on the motherboard site that was just updated.