New computer does not recognize ethernet cable

eelero

Honorable
Aug 5, 2016
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10,510
I just finished building a computer yesterday (it did not include an optical drive or a wireless card). Today I installed Windows 10 and drivers via flash drive. Everything seemed to be working except for the internet.

Details:
Motherboard is Gigabyte H110M-A
Drivers installed from official website: http://www.gigabyte.us/products/product-page.aspx?pid=5589&dl=1&RWD=0#driver
Network driver is: Realtek LAN Driver - 10.006.1001.2015
Upon opening my network settings it says Ethernet is not connected. Troubleshooting simply tells me to connect my cable and then gives up.
I have no way to access the internet to search for upgraded drivers as I do not have wifi capability.

Things I've tried:
Re-installing driver
Restarting computer
Plugging ethernet cable into a different computer to see if the problem was with the cable/router. (It worked on the other computer so I can assume it is not that)
Installing the most up-to-date network driver from their site: http://realtek-download.com/realtek-pcie-gbe-family-controller/

I'm at a loss as to what to try next. Any help?
 


LAN is enabled in the BIOS as far as I can tell. I'm not good at navigating the BIOS though, as this is my first PC.

Under device manager > network adapters I have "Realtek PCIe GBE Family Controller"
 


Wait, right after I made that last post a lot more stuff came up under the Realtek driver in Network adapters...
WAN Miniport (IKEv2)
WAN Miniport (IP)
WAN Miniport (IPv6)
WAN Miniport (L2TP)
WAN Miniport (Network Monitor)
WAN Miniport (PPPOE)
WAN Miniport (PPTP)
WAN Miniport (SSTP)
 

I guess it did. I uninstalled them and restarted the computer to no avail. I also noticed that clicking "search for new hardware" adds them all back again, if that means anything.

As for the modem I cannot connect an ethernet directly to it, but I don't think the problem is on that end because ethernet cable is recognized by the macbook I'm currently using as has an internet conncetion.

I found this screen while messing around... I wasn't aware that I might have to fill out any information like this, but I'm also a total noob. So... Do I need to fill this form out?

If not, should I just buy an ethernet card and try that? Maybe the port on the mobo is dead. The computer really does not recognize that anything is plugged in to the ethernet port at all.
 
Hmm connect the ethernet cable to this pc again. See if the LAN led on this modem lights up.

Or if you know what the username and password is, put it in see if you connect. Does the ethernet appear under network now then? If it does right mouse on it / diagnose. Whats it say
 


Interesting. So when the ethernet cable is plugged into my mac, the ethernet led is on. When I plug it into my PC, the ethernet led is off.

I cannot find the username/password for that info pane. I think tomorrow I will try buying an ethernet card to see if that works.
 


Yes to both. If there were some sort of short, I would be seeing more problems than just the ethernet not working, right?
 
Here's the way I see it:

I have a cable that works perfectly fine as evidenced when I plug it into any other computer. My PC doesn't even think there's a cable plugged in at all. I think if it was a driver problem, Windows would at least recognize that a cable is plugged in even if I couldn't access the internet. So I think the problem is with the mobo. Tomorrow I'm going to go buy an ethernet card and see if it works that way. If not I'll have to disassemble everything and try putting it back together.

And if those two don't work... I'll be fresh out of ideas.
 


Yeah I was able to confirm for sure that it's enabled in the BIOS. So I'll just have to wait for the ethernet card to come in. 🙁 I'm really scared this won't work and I'll be helpless though.