Ethernet Port not working on Notebook

Hello, I have a customer's Compaq notebook, Windows 8.1, and there is a problem with the Realtek FE Family ethernet controller.

It just won't configure itself with DHCP. WIFI works perfectly instead.

Screenshot of properties
Here's what I have already tried:
changing the cable
changing the port on the router
changing the router
resetting winsock
resetting tcp/ip
removing the driver and installing the latest version
ipconfig /release
ipconfig /renew

When I try resetting tcp/ip, it gives an error where it says "access denied" but it doesn't specify the component the error is related to.

So can somebody help me out? Faulty port maybe?
Daniele BrunengoIT Consultant, Web DesignerAsked:
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When you say "removing the driver and installing the latest version", how did you do this?
I ask because I was thinking of deleting the network adapter in Device Manager (and either refreshing the view), or restarting the PC and letting it detect and pick up the network port again.
The fact that WiFi is ok would definitely suggest that it's something to do with the actual cable port.

Another suggestion is to try manual assigning an IP address to the adapter?

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For a test, deactivate IPv6. If no better, boot a live system (windows2go or knoppix) and test there.
Daniele BrunengoIT Consultant, Web DesignerAuthor Commented:
@IT-Expert: I have tried just that, deleted it. On reboot it downloaded the driver but nothing changed. I then uninstalled anything Realtek related and downloaded an updated driver from Realtek, nothing again.

I have not tried manual IP, mostly because my customer needs Dhcp to work.

@McKnife: I will try both and report.
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nader alkahtaniConsultantCommented:
this image show our there is :
1.DHCP client is configured to get IP from DHCP server couldn't get the IP
disable WIFI then try again then unplug the cable and plug again ... you should see the network icon in the right corner in the laptop .
if no help , try to ping DHCP server from the client laptop , if it reply then there is some problem related to dhcp client or server
you may need to clear the IP pool cash from server side
Phil Stuart-DouekApplications SpecialistCommented:
The fact that you have a 169 ip address suggests that it is  a network problem rather than a local problem.

I would assign a manual ip address to start with to test the network port, and once you have confirmed that it  is, or isnt working then you can go on to look elsewhere.

My guess would be there is an issue with the DCHP server - do other machines gain ip's from plugging into the same port?
Daniele BrunengoIT Consultant, Web DesignerAuthor Commented:
The dhcp server is configured on my Mikrotik router and works fine with more than 15 devices I have hooked up right now.

I have already tried disabling Wifi but nothing changed. I will try to boot a Live cd since disabling IPv6 didn't work either.
nader alkahtaniConsultantCommented:
Try to use static IP on that notebook for troubleshooting purpose  ping the DHCP server did it reply?
Daniele BrunengoIT Consultant, Web DesignerAuthor Commented:
I just noticed that the Mac Address in the screenshot I posted is a sequence of twelve 0s.

Also, I booted with Lubuntu and it sees the Mac Address the same way and there is no connection either, so I guess it's the ethernet card after all.
nader alkahtaniConsultantCommented:
The nic may damaged or incompatible
nader alkahtaniConsultantCommented:
Thanks,   but what was the source of the problem?
Daniele BrunengoIT Consultant, Web DesignerAuthor Commented:
As you said, damaged nic, there's no other explanation. It wont' work with DHCP, fixed IP, different routers on different networks, different OSes.

Since there was no real solution, I gave points to all the people who tried to help.
nader alkahtaniConsultantCommented:
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