Hi, i have problem with stability of ethernet connection - from the PC perspective i'm physically losing connection.

 

What exactly happens:

I'm getting disconnected from router (not from internet, from router - can't even access default gateway).

Usually it lasts +/- 1s, but can happen few times in a row. 

These reconnections usually happens for few minutes then stop for some time (2h ~ 12h).

I don't remember even one occurrence of this on Wi-Fi.

 

What i tried:

Changed cabled → nothing changed

Updated Realtek Driver (to version from producent site) → nothing changed

Updated router firmware → nothing changed

Turned off all energy-saving settings in driver → nothing changed

Tested on other PC (using other cable) → Same problem as on my own PC

 

Some of my settings:

Internet Connection Type: PPPoE (optical fiber)

Online Duration: 2 days 4 hours 7 minutes (didn't disconnect)

UPnP: On

Firewall: On

ALG: Off

Almost everyhing else: Off

 

Log from today:

2026-05-19 22:31:50 Led Controller INFO [1985] Start to run WAN1_ON

2026-05-19 22:31:50 Led Controller INFO [1985] Start to run WAN0_OFF

2026-05-19 22:31:50 Led Controller INFO [1985] Start to run LAN_ON

2026-05-19 22:31:45 Led Controller INFO [1985] Start to run WAN1_ON

2026-05-19 22:31:45 Led Controller INFO [1985] Start to run WAN0_OFF

2026-05-19 22:31:45 Led Controller INFO [1985] Start to run LAN_OFF