Question media disconnected/ no cable detected

[keppio]

hi. i have a weird problem that my pc which wasn't used for ~2 months( no gpu) suddenly can't connect to network via ethernet cable. i did the ipconfig/all and it shows media disconnected and when i tried to run windows troubleshooter then widows don't see ethernet cable. and i know the cable is working since it works on my laptop.

i tried-
reinstal windows 10 pro x3
reset router x3
did probably most of the internet sugestions like reseting network, updating drivers, cmd commands, non have worked
i did bought usb to ethernet adapter and it shows in device manager like the one build in my motherboard with no problems and i did uninstall them( didn't worked)
updating bios to the newest and earlier one


i don't think there's a problem with my router since my laptop and phone work fine both on wifi and cable and it shows them on router website but when i plug in the pc it just dont see it. and i can see the ethernet port light sometimes flashing red and orange

please if you have any suggestions i would be grateful and have a nice day


Ryzen 5 5500
Asus crosshair hero VI
HP RTX 2080
16gb ddr4 corsair
480ssd
Rm 850

 

[rgd1101]

any of the network light turn on on the motherboard port?

 

[Ralston18]

Try another known working (at speed) Ethernet cable to connect the PC.

Even though the current cable worked (works) with the laptop, there could still be some minor problem when that same cable is connected to the PC.

 

[keppio]

any of the network light turn on on the motherboard port?

yes but not always. there is sometimes red and orange light blinking but rarely mostly wen i turn on the pc