I have a an Ethernet cable (that I have tested on my laptop so I know it works) plugged into my computer and the light blinks green in the back but it won't let me connect to the internet or even recognize a cable is plugged in. Any ideas on how to fix this?
Some cards have green mode that causes the port to now work if nothing is on the other end. I have seen some times when this feature back fires if the router/switch has the same feature(they are both expecting a signal from each other).
You should also ensure you have the latest drivers from the card or motherboard makers web site.
P.S. : I've had this problem before and apparently the port was turned off and I was able to turn it back on by doing a diagnose and repair. But this time the repair doesn't fix it. Is there a way to manually check? If so how?
Well it just doesn't recognize there is a wired connection and yeah it looks just like that but no network adapter tab. I should also note that it won't connect to the internet when I use my iPhones portable hotspot connected via USB
I do not have good news. The older(XP system, but it has an Nforce based chipset and realtek based network card) system I checked DOES show network cards in the same spot as my newer systems.
I almost have to wonder if some kind of hardware failure has happened with the onboard network card.
What do you see
If you felt adventurous, I would recommend trying a live CD/DVD of Linux. Live CD's do not install as long as you run them in live mode(they are not fast because they run off the cd/dvd, but they to work). They tend to have drivers for almost everything and at least if the network card worked on it, you would know it is a Windows issue and not a hardware failure issue.