![]() Select the display (wireless monitor, TV, or PC with Miracast support) from the list.Confirm the wireless display is on and discoverable (refer to device documentation).Source: Windows Central (Image credit: Source: Windows Central) In our best 4K monitor roundup, you can find more choices. In the event that the problem is the monitor or you are in the market for a new one, the HP Z27 is our top pick right now. If the basic troubleshooting steps outlined above do not fix the second monitor, it could be a software-related problem, which you may be able to fix with the steps below. Update the external monitor firmware to help fix bugs and compatibility issues (uncommon). ![]() If you have a Surface Pro 8 connected to a dock station, disconnect it and try to connect the monitor directly to the computer to confirm the problem is not the dock.Disconnect all peripherals (such as printers, cameras, and USB devices) to confirm none of the other devices are conflicting with the display.Connect another known working monitor to determine that the issue is not the graphics card.Connect the monitor to another computer to see whether the problem is with the external display.Change ports if the monitor and graphics card feature multiple ports.DisplayPort and HDMI come in different versions, so check the manufacturer for requirement details to ensure you have the correct cable.Change the signal cable to confirm you are not dealing with a bad cable.Disconnect the signal cable from both ends, wait 60 seconds, and firmly reconnect it.Check the signal cable connection between the monitor and the graphics card.Use the monitor's built-in controls and select the correct input port.Turn the computer off and on to refresh the connection.Confirm the monitor is connected to a power source.If all else fails, don't give up the world of IT and Cyber security is amazing. You also might need to look into rfkill (radio frequency kill), and unblock your network adapter by sudo rfkill unblock all sudo rfkill unblock wifi (run command a few times, and restart PC) If you didn't bring your network card wlan0 back up before running reaver, restart your PC and try again. If it still is not working, the order of precedence with the above commands matters. You may also want to try: sudo ifconfig wlan0 sudo ifconfig wlan0 down sudo ifconfig wlan0 up If that is not successful, try restarting your PC (at bootup if you have a wireless switch on your PC switch it on now), and repeating the above command. The command is usually: sudo ifconfig wlan0 up sudo rfkill unblock all sudo rfkill unblock wifi INFO: If there is a hardware switch that controls your network adapter switch it on before executing the following command You may have not properly brought up your wireless network adapter wlan0 You should restart your computer, run the above commands to configure your network adapter, and rerun reaver. Verify that you put wlan0 up before you try running reaver INFO: The network card ("wifi card") that's in your PC may not even support packet injection, or monitor mode.Īlso make sure that if you put wlan0 into monitor mode you run these commands: sudo ifconfig wlan0 down Also your on an HP notebook that was built to run Windows 10, you would need to live boot from a USB or CD, and try configuring your network adapter with ifconfig then, also your wireless network adapter might have a different name other than wlan0 (Kali configures this). If you're running Linux in a virtual container you need an external wireless card. Inet6 fe80::51e1:4e13:b623:444b prefixlen 64 scopeid 0x0Īre you running Kali, or any other Linux distribution inside of Virtualbox, VMWare? TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 So I do ifconfig and get (running internet off phone) eth1: flags=41 I'm trying to use reaver and when I attempt it says Failed to retrieve a MAC address for interface 'wlan0'! I've tried all the other threads and nothing is working.
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