A method of determining a problem with data packet transmission speed over a first communication medium coupled between a plurality of content servers and an ISP communication device. The method comprises repeatedly measuring the data packet transmission speed over the first communication medium coupled between each of the plurality of content servers and the ISP communication device, and determining there is a problem with the data packet transmission speed over the first communication medium coupled between one of the plurality of content servers and the ISP communication device when the repeatedly measured data packet transmission speeds over the first communication medium coupled between the one of the plurality of content servers and the ISP communication device is substantially different from the repeatedly measured data packet transmission speeds over the first communication medium coupled between other of the plurality of content servers and the ISP communication device.