[coder]

On a network, to be more specific and most likely in your situation a wireless network upload and download speeds are shared. If someone were to be running limewire on their computer in your network, the upload/download speed of your computers connection would decrease. Thus, slowing data coming from and going to the graal server of the playerworld that you are playing on.

It is possible that the cable modem is not working properly and is therefore not receiving and sending data at the rate it should be. However, with the information you have provided one might infer that the probability of a disfunctional cable modem is equivalent to another issue you may be having.

In some cases, this is not the case and the problem could be a software and, or hardware issue. If the information I have provided above has not helped you, consider providing more information.