No network adapters found in control pannel

Hi guys,
Am having some problem with my Ethernet Connection(wired).
Am on windows 7 32bit.

Problem:-
a year ago, on my motherboard the built in lan port was damaged, so at that time i bought a Lan Card(tp-link).
until last week it was working fine but now suddenly its not working.
1) windows 7 showing red cross on Network connection on TaskBar.
2) No Network Adapters in Device Manager
3) No Ethernet is showing in Change Adapter Setting In Network and Internet.

So far i done is:
1) Installed drivers (deep sleep mode is enable please unplug).
2) re install win 7.
3) lan card checked on another mobo (working totally fine)(so is working fine).

and am using a router in between,
so i called the isp and said him to free my mac address and then i plugged the Cable directly in lan card without Router in between. still no joy. by doing this, seems like that there is not problem with cable(both ips's one and router one's) also...

anything still missing??? plz help me guys this is so annoying me please help

I would download Linux Mint MATE and boot into it and see if network card/s are working.

Then: Load defaults in BIOS, and remove battery and adapter, also remove the RAMs and wait 5-10 minutes. Then, disable onboard ethernet in BIOS if you haven't done so (if possible with laptop BIOS)

I wonder if it is the on board in deep sleep.

GokAy said:

I would download Linux Mint MATE and boot into it and see if network card/s are working.

Then: Load defaults in BIOS, and remove battery and adapter, also remove the RAMs and wait 5-10 minutes. Then, disable onboard ethernet in BIOS if you haven't done so (if possible with laptop BIOS)

I wonder if it is the on board in deep sleep.

shall i install linux mate in vbox ??
and i forget to say that only red light is ON on that NIC, no green light is blinking or initializing...

You can check manual for PC card for meaning of red light but VBox won't help here as we are trying to see if hardware is at fault (I see you have already tried it on another PC). Make bootable Linux USB/DVD and boot with it (no installation needed).

By the way, did you check if ethernet cable is working? Do you have a spare cable to test?

GokAy said:

You can check manual for PC card for meaning of red light but VBox won't help here as we are trying to see if hardware is at fault (I see you have already tried it on another PC). Make bootable Linux USB/DVD and boot with it (no installation needed).

By the way, did you check if ethernet cable is working? Do you have a spare cable to test?

yaa sir, i checked with that main cable which is coming from isp side without putting router in-between, but that also not detecting

Can you clear one thing for me please? Is this a laptop or desktop?