Some users may experience issues with their Killer Wi-Fi adapter not being able to detect certain specific Wi-Fi access points. Here are the things to check for:
- If you are in Europe and the access point might be on the 2.4 GHz band, it may be using channels 12 or 13. If you have access to the settings on this access point, try changing the channel to 1, 6, or 11. If not, try updating to the latest version of drivers, which should be able to make use of channels 12 and 13 in European countries you can find the latest version of the drivers here:
Windows 10 1803+, Killer E2200, Killer E2400, Killer E2500, Killer E2500v2, Killer E2600, Killer E3000, Killer Wireless-N 1202, Killer Wireless-AC 1435, Killer Wireless-AC 1525, Killer Wireless-AC 1535, Killer Wireless-AC 1550, Killer Wi-Fi 6 AX1650
- Your router or modem may be using a DFS channel. DFS channels are 5 GHz channels that can be used by the public, but public devices receive a “leave the channel” command if official use is necessary. Although Killer Wi-Fi adapters ordinarily have no problem operating on DFS channels, if your laptop has been used in an area where the DFS channel was being used in an official capacity (such as an airport), it may have received the signal to stay off of that channel. For example, in the United States and some parts of Europe, DFS channels are 5 GHz channels 50-144. When troubleshooting a wireless network that does not appear for a specific device, these channels should be avoided in these areas. You can use the chart available on this Wiki page to quickly see which channels are available in your area of the world. We have also noted that some routers will automatically choose DFS channels even though they are not compatible with those same channels, and they must be manually set to a channel not to use them.
- Your router or modem may need to be power cycled. All routers and modems rely on a minimal amount of physical resources and, eventually, those resources will hang, making it necessary to restart them from time to time. The fastest and most straightforward way to do this is to unplug the device for ten seconds, then plug it back in – this can help even if only one device is having problems with the access point.
- Your computer may need to be restarted. Restart your computer by clicking Start > Power > Restart. Note that pressing the power button on most modern computers activates sleep mode – it does not shut them down. For your computer to reboot, you must either click Shut Down or Restart.
- You may be too far away from the wireless access point. Wireless signals rely on line of sight and, as such, each solid object between your device and the access point diminishes the signal. A single wall may contain multiple solid objects. The flooring between floors in a building includes concrete subflooring, wood framing, piping, and various other solid objects. If at all possible, make sure you can connect with another device before assuming any one device is faulty.
- There may be interference. 2.4 GHz routers in crowded apartment complexes are especially susceptible to this. You can use the KIller Control Center’s Wi-Fi Analyzer to see how many people are sharing your current channel. If too many people are on the same channel as you, it may not be possible to connect to your access point from too far away. Setting your sideband, or side channel, to 20 MHz can help mitigate this, as the smaller the sideband, the stronger the signal.
- Your wireless profile may have become corrupted. If you have connected to this access point before, but it is no longer visible, you may need to delete the connection’s profile and reconnect. Here are the steps:
- Click the rectangular “Connect” button, where you would usually click to connect to a wireless network, on the bottom, right-hand side of your screen.
- Click Network and Internet Settings.
- Click Wi-Fi on the left, if it is not already selected.
- Click Manage Known Networks
- Click the network that you are not able to detect.
- Click the Forget button.
- Close the Settings window, and connect like normal. If the access point still does not appear, try restarting your machine by clicking Start > Power > Restart.