Lenovo 22ADA6 Hardware Maintenance Manual

Problem SolutionThe computer cannot connect to an EthernetLAN.• Connect the cable from the Ethernet connector to the RJ45connector of the hub.• Enable the Ethernet LAN feature in UEFI BIOS.• Enable the Ethernet LAN adapter.1. Go to Control Panel and view by large icons or small icons.2. Click Network and Sharing Center ➙ Change adaptersettings.3. Right-click the Ethernet LAN adapter icon and click Enable.• Update or reinstall the Ethernet LAN driver.• Install all networking software that is necessary for your networkenvironment. Check with your LAN administrator for the necessarynetworking software.• Set the same duplex for the switch port and the adapter. If youconfigured the adapter for full duplex, ensure that the switch port isalso configured for full duplex. Setting a wrong duplex mode mightdegrade performance, cause data loss, or result in lostconnections.When a Gigabit Ethernet model computer isused at a speed of 1000 Mbps, the EthernetLAN connection fails or errors occur.Connect the network cable to the Ethernet connector using Category5 wiring and a 100 BASE-T hub/switch (not 100 BASE-X).The Wake On LAN (WOL) feature does notwork. Enable the Wake On LAN feature in UEFI BIOS.The Wi-Fi feature does not work.• Enable the Wi-Fi feature in UEFI BIOS.• Enable all Wi-Fi devices.1. Right-click the Start button to open the Start context menu.2. Click Device Manager. Type the administrator password orprovide confirmation, if prompted.3. Expand Network adapters to display all network devices.4. Right-click each Wi-Fi device, and then click Enable device.• Enable the Wi-Fi feature in Windows Settings.1. Open the Start menu.2. Click Settings ➙ Network & Internet ➙ Wi-Fi.3. Enable the Wi-Fi feature.• Update or reinstall the Wi-Fi driver.Chapter 5. Troubleshooting, diagnostics, and recovery 45