The good thing that has happened over the years is most devices now work with Linux machines out of the box. No need for complicated configurations and troubleshooting. However, there may be some cases where devices may not work properly on Ubuntu and other Linux systems. Students and new users may not know what to do initially but focusing on basic troubleshooting steps may get them working again. This brief tutorial shows students and new users how to troubleshoot wireless network issues on Ubuntu Laptops. If you cannot connect to a wireless network for some reason, try following the instructions below:
Make sure that your laptop is not connected to a wired internet connection. Sometimes, when connected to the Wired network, you may not know whether the Wi-Fi device is connecting and working.
If you have an external wireless adapter such as a USB adapter, or a PCMCIA card that plugs into your laptop, make sure it’s firmly inserted into the correct slot.
If your wireless card is built-in, make sure that the wireless switch is turned on (if it has one). Some laptops have wireless switches that you can turn on/off.
Click the system status area on the top bar and select Wi-Fi, then select Wi-Fi Settings. Make sure that Wi-Fi is set to ON. You should also check that Airplane Mode is not switched on.
Look down the list of information and see if there is an item related to the wireless network adapter. If the state is connected, it means that the adapter is working and connected to your wireless router. If it’s not connected or you can’t see it, then the Wi-Fi adapter may not be active or disabled. If the above steps are done and you still can’t find the wireless adapter, run the commands below. Look through the information that appeared and find the Wireless interface section. If your wireless adapter was detected properly, you should see something similar (but not identical) to this: If you only see the description Ethernet interface, then the wireless adapter is not being detected by your Ubuntu laptop. You may then have to install the device drivers from the manufacturer’s websites or other sources. You can also run the command below to list devices on your system. Look through the list of devices that are shown and find any that are marked, Network controller or an Ethernet controller. Several devices may be marked in this way; the one corresponding to your wireless adapter might include words like wireless, WLAN, wifi or802.11. Here is an example of what the entry might look like: If you don’t see something like the above line, then the device isn’t detected which may mean the device isn’t functional or you’ll need the driver to make it functional. If all the above steps failed and the correct device drivers were installed and nothing worked, then the Wi-Fi device may not be working and you may need to get a replacement. Hope this helps and please come back soon. You may also like the post below:
