Ethernet plug problem

bombsquad91

New Member
On the back of my computer where I plug in the Cat5 cable from the router ........there seems to be problems with the plug. A few times a day i'll be using my computer and all of a sudden I have no internet connection. I look behind the computer and the LED's on the ethernet port are not lit up. I unplug then plug it back in several times until the LED's come on. I then have internet again.
I have Time Warner Cable internet service.
The cable modem is connected to the router, and from the router to the computer.
The router is working fine because I still have wifi on my iphone.
I've replaced the Cat5 cable from the router to the computer twice. Same problem.
There are 5 outlets on the router. I've tried them all. Same problem.
I have a Dell Inspiron 530 thats a few years old. 2 terrabyte hard drive. Upgraded video card. USB 3.0 card. Memory maxed out.
Do I need to buy a new ethernet card? If so, do I have to use one of my slots or can I install a new one in the same place the stock one currently is? Will a new one possibly improve my internet connection speed wise?
Thanks in advance.
 
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