[SOLVED] Upgraded my pc and now ethernet cable won't work on my pc only

[Yazitsme]

Hello, so i upgraded my pc yesterday and when i connect the ethernet cable the orange led blinks every couple of seconds from the back and desktop isn't detecting it, i changed the cable and it still isn't detecting it. so i used the ethernet cable on my laptop and it worked. after that i took my desktop to a service and when they connected their ethernet cable it worked normally and i can't for the life of me figure out why the cable won't connect in my house and on my desktop specifically.

Ive already tried redownloading the drivers and still it won't work

motherboard: ROG STRIX Z490-E GAMING

 

[rocktalkrock]

Have you tried running the Network troubleshooter in PC Settings? There is also a Network reset option you can try.

 

[kanewolf]

Hello, so i upgraded my pc yesterday and when i connect the ethernet cable the orange led blinks every couple of seconds from the back and desktop isn't detecting it, i changed the cable and it still isn't detecting it. so i used the ethernet cable on my laptop and it worked. after that i took my desktop to a service and when they connected their ethernet cable it worked normally and i can't for the life of me figure out why the cable won't connect in my house and on my desktop specifically.

Ive already tried redownloading the drivers and still it won't work

motherboard: ROG STRIX Z490-E GAMING

Did this "upgrade" include a clean OS install? If not your OS is confused by the new hardware and the old hardware in the Windows registry. A new motherboard should always be accompanied by a clean OS install.
Here is the sticky on how-to https://www.tomshardware.com/news/how-to-do-clean-installation-windows-10,36160.html

 

[Yazitsme]

Have you tried running the Network troubleshooter in PC Settings? There is also a Network reset option you can try.

yes it tells me to plug a cable.

 

[Yazitsme]

y

Did this "upgrade" include a clean OS install? If not your OS is confused by the new hardware and the old hardware in the Windows registry. A new motherboard should always be accompanied by a clean OS install.
Here is the sticky on how-to https://www.tomshardware.com/news/how-to-do-clean-installation-windows-10,36160.html

yes i did a format and put a new windows 10 on it

 

[kanewolf]

y

yes i did a format and put a new windows 10 on it

OK, did you load all the motherboard drivers ?

 

[Yazitsme]

OK, did you load all the motherboard drivers ?

yea i did it even worked on ethernet outside my house

 

[kanewolf]

yea i did it even worked on ethernet outside my house

OK, then then next thing is to ensure your ethernet adapter speed and duplex are set to "AUTO".
Also get a brand new cat5e or cat6a ROUND 100% copper ethernet cable. I like the monoprice cables -- https://www.monoprice.com/category/networking/networking-patch-cables/cat5e-ethernet-cables

 

[Yazitsme]

OK, then then next thing is to ensure your ethernet adapter speed and duplex are set to "AUTO".
Also get a brand new cat5e or cat6a ROUND 100% copper ethernet cable. I like the monoprice cables -- https://www.monoprice.com/category/networking/networking-patch-cables/cat5e-ethernet-cables

ok, how do i check adapter speed and duplex?
will do ill get a cat5e

 

[kanewolf]

ok, how do i check adapter speed and duplex?
will do ill get a cat5e

Here is a how-to on checking the speed and duplex -- https://www.home-network-help.com/speed-and-duplex.html
Also, open a cmd.exe window and run ipconfig.exe /all -- post the output of that.

 

[Yazitsme]

Here is a how-to on checking the speed and duplex -- https://www.home-network-help.com/speed-and-duplex.html
Also, open a cmd.exe window and run ipconfig.exe /all -- post the output of that.

C:\Users\PC>ipconfig.exe

Windows IP Configuration


Ethernet adapter Ethernet:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Wireless LAN adapter Local Area Connection* 1:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Wireless LAN adapter Local Area Connection* 10:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Wireless LAN adapter Wi-Fi:

Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::84df:26a7:f337:719a%18
IPv4 Address. . . . . . . . . . . : 192.168.100.136
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.100.1

C:\Users\PC>

 

[Yazitsme]

Here is a how-to on checking the speed and duplex -- https://www.home-network-help.com/speed-and-duplex.html
Also, open a cmd.exe window and run ipconfig.exe /all -- post the output of that.

also speed and duplex is set to auto

 

[Yazitsme]

so

also speed and duplex is set to auto

this might be useful, i changed auto to 100mbps half and it connected to ethernet, its slow but it connected

 

[kanewolf]

so

this might be useful, i changed auto to 100mbps half and it connected to ethernet, its slow but it connected

That is most commonly a cable problem. Is your connection directly to the router or is is through in-wall cabling ?

 

[Yazitsme]

That is most commonly a cable problem. Is your connection directly to the router or is is through in-wall cabling ?

in-wall cabling, i set it to full 100mbps and its just like before so solved thank you!. but i have 200mbps internet speed, is the problem with the in wall cabling then?

 

[kanewolf]

in-wall cabling, i set it to full 100mbps and its just like before so solved thank you!. but i have 200mbps internet speed, is the problem with the in wall cabling then?

Quite possibly. Test this by moving your PC near the router and directly connecting. If you get full speed then you either have an in-wall or a patch cable problem. It only takes 1 of the 8 wires in an ethernet cable not making GOOD connection for gigabit to not work.
If you have in-wall cabling, in addition to the new patch cables, I recommend you get a basic ethernet cable tester like this -- https://www.amazon.com/Klein-VDV526-052-Scout-Junior-Tester/dp/B004CI9NRM

 

[Yazitsme]

Quite possibly. Test this by moving your PC near the router and directly connecting. If you get full speed then you either have an in-wall or a patch cable problem. It only takes 1 of the 8 wires in an ethernet cable not making GOOD connection for gigabit to not work.
If you have in-wall cabling, in addition to the new patch cables, I recommend you get a basic ethernet cable tester like this -- https://www.amazon.com/Klein-VDV526-052-Scout-Junior-Tester/dp/B004CI9NRM

ok will do that to check it out later, as for now im happy its just working normally like before. thank you kanewolf! really appreciate your help