Fluke Network Tester - Manual (Page 55)

Common Problems
Problems NetTool Detects
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Things to Consider
You can think of problems fitting into one of two
categories: link connectivity or network. Link connectivity
problems relate to cabling or cabling properties while
network problems involve PC/network configuration
settings or PC-to-server interactions.
Generally, you encounter network problems while setting
up or changing a PC’s connection to the network. These
types of problems can often be resolved by checking the
network settings on the PC.
With a single-ended connection, NetTool can only report
Unwanted Protocols and link connectivity level problems.
An inline connection is required for all other problems. The
different types of connections are discussed in Chapter 2.
NetTool enables you to see on which side the problem
exists; that is, whether it is a problem between the PC and
NetTool or whether it is between NetTool and the network
itself. Whether it is a cabling problem or a protocol
mismatch, NetTool helps you isolate a problem and keep
things running.
Problems NetTool Detects
This section lists by category the problems that NetTool
can detect. For each problem, an explanation (if needed)
is given and possible corrective steps are provided.
Every network is complex and the solutions given are
meant to assist you with troubleshooting. This is not an
exhaustive troubleshooting guide.
Link Connectivity Problems
The problems listed in this section involve cabling or
cabling properties.
•
Problem: Speed mismatch
Explanation: The network is running at 10 Mbps and
the PC is running at 100 Mbps (or vice versa). This
speed mismatch prevents connection to the network.
Remedy: Correct the speed mismatch by making
sure both devices are running at the same speed.