Ethernet Port not Working

sbedirt · August 9, 2018

Hey everyone,

I'm building a computer for a friend and am running into a weird issue with the ethernet port. When I first built the system I booted it up for the first time and updated the bios and made sure that everything was enabled, including the ethernet. I then installed windows and noticed in the install that the ethernet cable I had plugged in wasn't being detected but I didn't think anything of it as I figured that it was just because there weren't any drivers installed. The system loaded into windows and I went and got the drivers from asus and installed them but the ethernet still wasn't working. At this point I plugged in a wifi adapter so windows update could do its thing to possibly solve the issue, still nothing. So I then went to realteks website to get the latest driver from there and still no luck. At this point I have checked the device manager multiple times with the ethernet consistantly showing up as "realtek pcie gbe family controller" and windows says that its working properly with the latest drivers. I've tried to reinstall windows with that not making a difference and rebooting the system and fully unplugging the power and even resetting the cmos and defaults on the motherboard.

What should be the next step at this point? I've tried different cables and ports on my router with all of them working on my own system but not the new one. Should I try to rollback the bios to an earlier version or is there something else I should try?

The motherboard is an ASUS TUF B450-PLUS GAMING and this is the pcpartpicker for the rest of the parts.

Thanks for any help.