Electrical three-pin plug three lines of color are what color
Is not installed a good card installed on the network card driver like to remember remember to add points
You use a few loom ah not to re-establish a broadband connection ah
See whether the crystal head is loose, the host is a separate card or onboard card? If it is a separate card, please pull out, clean up the slot, the card in the contact point with a rubber eraser, if it is onboard card to see if you touch it when you clean up, whether loose There is no way to loose, and only to the maintenance of the computer where the master to help you under the welding, (this is generally not easy to appear) I feel may be a network of things, if you have extra cable, try to change, hope Can help you
