Reasons a network adapter is not detected
Network adapter is a major components of a computer. Your computer cannot be a part of a network unless you have network card on your computer. A network adapter provides a computer with a network connection. Apart from a network connection, Internet modems connect to a computer through a network port. This driver program can be installed from a network card, which helps the operating system to communicate with the network adapter. If a network adapter is properly installed, you will be able to find the name of the network adapter in Device Manager under 'Network Adapter' tab. Sometimes, the operating system does not detect a network adapter. So, an Internet connection and network connection becomes unavailable if the network adapter is not detected.
- Enable the network adapter
- Re-connect the network adapter
- Replace the network card
Enable the network adapter
All onboard hardware components can be asll to work or can be truned off on BIOS and components that are disabled on BIOS are not detected. So, enter BIOS set-up by pressing Delete, F1, F2 or Alt+Esc, to allow the network adapter to work, and enable onboard LAN or Ethernet card on BIOS as well, then save the settings and reboot the PC. Once the computer restarts, check if the network adapter is detected.
Re-Connect the network adapter
Some computers use PCI Network adapter to facilitate the network connection and if the network Card is not fixed on the PCI slot properly, the network adapter will not be detected by the operating system. So, unplug the network adapter from the PCI slot and reconnect it properly and check if it’s detected. Plug-and-Play service on Windows starts running as soon as you turn on the computer. Devices including the network adapter will not be detected if this services is stopped. So, restarting Plug-and-Play service will be a good way to fix this issue.
A network adapter will not be detected if it is physically damaged or if the network adapter is faulty. So, if all the above mentioned troubleshooting steps fail to fix the issue, you may have to replace the network adapter with a new one. You can connect the new network adapter to any PCI slot and install the driver to make it work.
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