I have recently installed spy cameras around my house , as i need to to monitor the activities out there. My objective was to have a live view of the happenings in my house sitting from my office, on my laptop. My office is around 200 feet away from my house. All the a/v feed from the cameras are being captured in a c.p.u placed at my house. In order to get me a feed my engeneer did the following - he shared both the systems with networking , over a cat 5 lan network, distance was around 200 feet , between the systems (cpu and my laptop), however I am unable to get any signal on my laptop , from my cpu, cant even ping my cpu from the systems. Every thing is in order , the crimping and other such things. However it is working fine at the very point , using a 2 feet cat 5 cable i can get good signal , and my systems are shared ( I can acess the screen of the cpu , and its d drive from my laptop, even control the operations of my cpu). What is going wrong , are we missing somthing out here , or some other technology is required for this. Please help.