unidentified network terror

Yesterday I was so happy to finally upgrade my graphics card from 8800gts 512 sli to an Asus OC 560ti. After installing the new card my network stopped workin. Note thw mobo is an Asus p5nt deluxe with 780i chipset and nforce lan.
I was getting no cable connected at first. Not even the leds on thw ethernet were lid while thw light on the router was giving me that there was something connected.
I reset thw bios and qhen I rebooted. I was so hapoy to see the leds of the ethernet on again to discover that I was getting unidentified network error. Ive triwd so many things I can't. Even list or remember. No bonjour or weird strings on the servicea tried a different cable a different router in between the dsl router which both send wireless Internet.
I m iut of ideas and patience. Tried manual ip set tried disabling ipv6. Added all clients protocols to the connection.. I updated the drivers from Asus and or nvidia even tried a pci ethernet card with the same results. I really don't Want to format the pc right now. Somebody save me.
Also tried disabling firewalls.
P.s. Sorry for misstypes. I only have my touchphone for Internet access now.
P.s. 2 windows recovery doesn't. Work for some reason
pavconAsked:
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pavconConnect With a Mentor Author Commented:
well.. problem solved..
despite that I also tried disabling Dr. Webs firewall and windows firewall (which was down anywya) somehow Dr. Web was blocking all connections after it detected the hardware change.
Never knew of those settings till I decided to unplug the pc and go to my old job(comp tech)
and see if I could clear my mind there.
sorry for all the fuss caused. Sometimes the solution could be the simplest thing and we still run about the most complicated things..
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JohnBusiness Consultant (Owner)Commented:
You tried a different Ethernet card, and you tried a TCP/IP reset. Correct? And the network does not work.

I wonder if the video card is incompatible.

Open cmd.exe with Run as Administrator. Run SFC /SCANNOW and allow to complete. Restart and test.
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David Johnson, CD, MVPOwnerCommented:
When you installed the video card did you unplug the computer and then ground youself to the case?
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pavconAuthor Commented:
Both correct. Already did sfc scannow and also chkdsk. Grounded my self yes. As I said I also tried another ethernet pci card so it seems more like a software issue.
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nobusCommented:
can your PS handle the extra load?
calculate the power you need here : http://extreme.outervision.com/psucalculatorlite.jsp

what OS is this?  you can download your drivers here :  http://support.asus.com/Download.aspx?SLanguage=en&m=P5N-T%20Deluxe&p=1&os=

did you try with the old video card again?
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pavconAuthor Commented:
I tried the old card back with the same results. Psu is a thermaltake 850watts 1 year old. That shouldn't. Be an issue. Used to have 2x8800gts. 512 in sli mode
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pavconAuthor Commented:
OS is wibdows 7 64bit
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JohnBusiness Consultant (Owner)Commented:
Start the computer with a bootable CD (Ultimate Boot CD or similar) and see if the network runs that way. You will need the network driver when you make the bootable CD.

Another way to test is to a different hard drive, if you have a spare, and put a basic operating system on that. Does that work.

The above will do a basic determination if you have a hardware or software problem.
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nobusCommented:
or try a linux boot cd, like Knoppix - they have most drivers aboad to test the network card :
ftp://mirrors.kernel.org/knoppix-dvd/KNOPPIX_V7.2.0bootonly-2013-06-16-EN.iso   

alternatively, you can install ubuntu on a separate disk, or partition

you could also search for drivers updates, with slimdrivers    https://www.slimwareutilities.com/slimdrivers.php
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pavconAuthor Commented:
Skimdrivers require network arent they?
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nobusCommented:
that you are supposed to run after you have one or another network connection yes
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pavconAuthor Commented:
found the solution and it was one of the solutions I already tried and mentioned in the description/question but it had another aspect that I didn't know of until then.
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