Tuesday, December 28, 2010


1. Cable Problem: Cables that connect different parts of a network can be cut or shorted. A short can happen when the wire conductor comes in contact with another conductive surface, changing the path of the signal. Cable testers can be used to test for many types of cable problems such as:
Cut cable, incorrect cable connections, Cable shorts, Interference level, Connector Problem

2. Connectivity Problem: A connectivity problem with one or more devices in a network can occur after a change is made in configuration or by a malfunction of a connectivity component, such as hub, a router or a Switch.
3. Excessive Network Collisions: These often lead to slow connectivity. The problem can occur as a result of bad network setup/plan, a user transferring a lot of information or jabbering network card.
NB: A jabbering Network card is a network card that is stuck in a transmit mode. This will be evident because the transmit light will remain on constantly, indicating that the Network card is always transmitting.

4, Software Problem: Network problems can often be traced to software configuration such as DNS configuration, WINS configuration, the registry etc.

5. Duplicate IP Addressing: A common problem in many networking environments occurs when two machines try to use the same IP address. This can result in intermittent communications.

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