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Step 4 For greatest compatibility with the lab exercises in upcoming chapters, you should now put your Start menu in the Classic Start menu mode To set the Start menu to Classic mode, follow these steps: a b c d Right-click the Start button Select Properties Choose Classic Start menu Click OK

In cases such as this, the tech s job is not only to troubleshoot the problem and provide a solution, but also to provide customer service and present a good image of the IT department to other employees As the expert in this situation, you not only have to solve the issue you must also make your best effort to diffuse the agitation of the anxious analyst

.

Most of the following lab exercises will assume you have a Windows XP or Vista system in the Classic mode

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Star networks are the easiest to troubleshoot Because each node is on its own network cable leading to the hub, it s easier to isolate the problem down to several lengths of cable If you re having trouble with a node on a star topology network, first determine if something is wrong with the computer or the cabling Move the computer to a different location in the building and see if the same problems occur If they do, then it s a sure bet the problem is in the computer, such as a failing NIC Next, if the computer has normal network performance in a different location, try replacing the patch cable leading from the node to the wall These cables can often become slightly damaged as furniture or computers are moved around Next, in the wiring closet you can try connecting the patch panel from the node s location to a different port on the hub using a different patch cable While wiring closet patch panels are less likely to fail because they aren t moved around much, they can still have poor connections or wiring that can become problematic over time Finally, if you have eliminated all other factors, you must consider replacing the cable leading from the wiring closet to the node s location At this point, having a qualified network cabling contractor to assist you can be extremely helpful The qualified network cabling contractor has equipment to test the cable in the wall and to determine if it s bad before pulling a replacement cable through the building Coaxial networks can be much harder to troubleshoot, because many nodes share a single segment of the network Usually, a problem in one part of the segment affects all nodes on the segment similarly By far the most common problem on coaxial networks is loss of network connectivity for all the nodes in a segment Someone disconnecting the network cable so that it is not a continuous run invariably causes this loss To track this problem down, find out who s moving or rearranging offices, or which offices are being painted The chances are excellent the problem is there If this fails, then the troubleshooting job becomes much more difficult There are two ways to track down cable breaks that aren t obvious: M Use a coaxial cable scanner These hand-held instruments can be attached to a coaxial network cable and can tell you how far along the cable any shorts or breaks are occurring Keep attaching the cable scanner to the network cable in different locations until you can track down the problem Get an extra terminator for the network Disconnect the cable in a particular location and attach the terminator See if the computers on the new, smaller segment can log in to a server (A server must be available in the same segment; otherwise, you can use the PING command if you re using the.

Step 5 Another change that came with the advent of Windows XP (and continued with Vista) is the way you view the Control Panel The Control Panel icon now opens by default in Category View (see Figure 4-3)

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