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Network Problems

Most network problems result in the user not being able to access network resources and can be caused by several problems:

Problem Troubleshooting
The network configuration has been changed or corrupted Check the configuration of the network card by using ipconfig from the DOS command prompt. Add the switch /all to see all information. If the settings do not match, then reset them within Windows. If the IP address is then it cannot see the network at all and, if the card is set to automatically assign IP, cannot be given a valid address.
The cable is missing from the network card or has become damaged Do a quick visual check and use the ping command at the command prompt to see if you can 'talk to' any other computer on the system. You will know the IP address range being used in your network and you should use the server or a computer near the one that is faulty. If you can't, then replace the cable and/r test the connection with a network cable tester.
The network card is faulty Use Device Manager and ipconfig to check status.
There is a problem with the network resource (e.g. printer, printer server, network drive) Check to see if the resource is working properly, see if you can ping the resource, check to see if other users can access the resource.
There is a problem with a switch or hub on the network Use ping to see if you can talk to near computers - if you can then the local switch/hub is functioning. Used tracert (trace route) with the IP address of the resource to be accessed. This will stop at the device causing the problem.

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