My Modem Keeps Reporting Problem Over a LAN
If your modem keeps reporting problems over a local area network, several causes are possible. Electronic devices, such as modems and computers, that are connected to each other via a wire or cable are part of a LAN and can cause problems when attempting to connect to each other. You can fix many modem-related problems on your own, but some may force you to seek the services of a qualified electronics professional.
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Starting Point
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All modems rely on a wired connection to a phone or cable line for transmitting data to and from the Internet or to a computer on the other end of the phone or cable line. If this connection is not secure or established, the modem will report problems when you attempt to transmit data. Before panic sets in and you begin to take more drastic measures to deal with a modem problem over its LAN, check the device’s wired connection to the phone or cable line to make sure the connection is securely in place. If a loose connection is the problem your modem is experiencing, you can avoid a lot of troubleshooting efforts, and money, by simply securing it.
Drivers
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Software programs known as drivers enable a modem to interface with connected devices, such as computers. If these drivers are not installed your computer, your modem will report problems when you attempt to connect to the Internet through the device’s LAN. These problems can appear in the form of a failure-to-connect prompt or a simple unresponsiveness. Typically these drivers come on an installation disk, but if you no longer have the disk, you can usually get them from the downloads section of the manufacturer’s website.
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Routers
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Wireless routers are commonly used devices that connect to a modem and create what’s known as a wireless local area network, or WLAN. The router connects to the modem as part of the modem’s LAN, but anything that wirelessly connects to the router becomes part of the router’s WLAN. Routers can also cause modems to experience problems and fail to operate properly. You can attempt to fix router-related problems by simply disconnecting the router from the modem and then reconnecting it. This process resets the connection and should lead to the modem's functioning properly, unless the problem lies with the modem.
Considerations
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You can determine if your modem’s LAN problems are caused by its connected devices by plugging your devices into another modem to see if the problems appear with the new setup. If the problems lie with your modem, contacting a qualified repair specialist or the manufacturer may be your only option. Some modems contain a wireless router feature that enables the device to act as both a modem and a router, which can also be at the center of any problems you might experience when connecting to a LAN. Consult the user guide manual for specific troubleshooting suggestions.
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References
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