Difficult to say without some background and additional information. There could be multiple reasons for connection problems and therefore multiple solutions.
There are many reasons why you could have lost local area connection. You could be in the middle of a storm.
ye ihave local area connection 5 months ago
If you've added a USB camera to windows xp it may add this connection or if you are using Netmeeting it uses this connection as well.
Is the Ethernet the oldest form of Local area connections?
Definitely it will work..
Broadbandreports.com is one of the best online sources to find local ISPs in your area.
local area networking.
i get my network from a cable of the server which is mean (Local Area Connection)
Install Microsoft Windows on your Mac.
Local Area Network => Connects you via wired connection to your network.
Because of your internet connection
You can't "fix the connection to Minecraft" it's all on your current holder, and bandwidth.