Windows 7 Network Adapter
If your network adapter is not working, there could be a problem with the hardware, the driver software, or the network protocols. Often related to Layer 1 and Layer 2, some common causes for network adapter problems include outdated driver, bad network connection, network adapter not on the HCL, improperly configured network card, and cabling problems.
Network Adapter Not on the HCL
If the device is not on the Hardware Compatibility List (HCL), check on the internet to see if others have found a solution or contact the hardware vendor for help.
Bad Network Connection Device
Confirm that all network connectivity hardware is working properly, such as making sure that the active (the ones you are using) switch and port are functioning properly on a fast Ethernet network.
Confirm that all network connectivity hardware is working properly, such as making sure that the active (the ones you are using) switch and port are functioning properly on a fast Ethernet network.
Outdated Driver
Confirm that you have the most current driver for your adapter. Check for an updated driver by selecting the Driver tab of the adapter’s Properties dialog box and clicking the Update Driver button. Windows 7 will search for a better driver or check for the most current driver on the hardware vendor’s website.
Confirm that you have the most current driver for your adapter. Check for an updated driver by selecting the Driver tab of the adapter’s Properties dialog box and clicking the Update Driver button. Windows 7 will search for a better driver or check for the most current driver on the hardware vendor’s website.
Network Adapter Not Recognized by Windows 7
Check Device Manager to see if Windows 7 recognizes the adapter. If you don’t see your adapter, you can try to manually install it.
Check Device Manager to see if Windows 7 recognizes the adapter. If you don’t see your adapter, you can try to manually install it.
Improperly Configured Network Card
Confirm that the settings for the network card are correct for the parameters recognized within your network and the hardware device the machine is connected to.
Confirm that the settings for the network card are correct for the parameters recognized within your network and the hardware device the machine is connected to.
Cabling Problem
Check to be sure that all network cables are functioning and are the correct type, including making sure that the connector is properly seated, the cable is straight or crossed (depending on where it’s plugged into), and the cable is not broken. Look at the little green light (LGL) for the link and activity on the NIC. This does not equate to a good connection even if the LGLs are illuminated. A single conductor failure in a cable can still have a link light on but that doesn’t mean data is passing.
Check to be sure that all network cables are functioning and are the correct type, including making sure that the connector is properly seated, the cable is straight or crossed (depending on where it’s plugged into), and the cable is not broken. Look at the little green light (LGL) for the link and activity on the NIC. This does not equate to a good connection even if the LGLs are illuminated. A single conductor failure in a cable can still have a link light on but that doesn’t mean data is passing.
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