List of Common Network ProblemsApril 15th, 2014 by Rossy Guide
Many problems of your system may be network-related. Some of the most common network problems are as follows:
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:
o Cut cable
o Incorrect cable connections
o Cable shorts
o Interference level
o Connector 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:
o A router or a Switch
Excessive Network Collisions:
These often lead to slow connectivity. The problem can occur one of the following reasons:
o Bad network setup/plan
o A user transferring a lot of information or jabbering network card
Note: 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.
Network problems can often be traced to software configuration such as:
o DNS configuration
o WINS configuration
o The Registry, etc.
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.
Network problem of another one is NIC settings mismatch. On large networks this problem can exist on 20% to 30% the network nodes, and with a concerted effort can be brought under control. Taken into context, the impact is much larger than expected because many of the systems are distributed and require the collaboration of multiple nodes and servers to function correctly.
Even a small system has a minimum reliance of 10 network nodes and if 2 or 3 of them are not functioning correctly it influences the whole system. Left unchecked and unmanagement the NIC problem could influence and undermine all your systems.