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Thread: RTL8723be WiFi not working

  1. #1
    Join Date
    Jun 2016
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    15

    RTL8723be WiFi not working

    Hey, I am using an HP Pavilion ab214tx laptop. I had wifi issues on Ubuntu earlier, but were solved. Months after that I decided to change my distro and I am finally back to Ubuntu, but now I am unable to fix my wifi by updating the driver. I tried the dkms instaall method and also the sudo make install method. But I guess now my wlo1 interface is not detected anymore! I would be more than happy if someone could help! And please tell me if I need to provide any more information! Thank you!
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    Last edited by Neal_Gosalia; November 15th, 2016 at 08:51 PM.

  2. #2
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    29,807
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: RTL8723be WiFi not working

    Please try:
    Code:
    sudo modprobe -v rtl8723be ant_sel=2
    does it come on?

  3. #3
    Join Date
    Jun 2016
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    15

    Re: RTL8723be WiFi not working

    Output:
    Code:
     
    insmod /lib/modules/4.4.0-21-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtlwifi.ko 
    modprobe: ERROR: could not insert 'rtl8723be': Required key not available

  4. #4
    Join Date
    Feb 2008
    Location
    Texas
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    29,807
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: RTL8723be WiFi not working

    That is what I expected, that means you have to turn off secure boot, go into your bios and see if you can turn it of from their if not I will find the directions for doing it another way.

  5. #5
    Join Date
    Jun 2016
    Beans
    15

    Re: RTL8723be WiFi not working

    Yes I can. I'll do that and be right back

  6. #6
    Join Date
    Jun 2016
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    15

    Re: RTL8723be WiFi not working

    Thanks a lot! WiFi is fixed now! If I may ask, what does secure boot have to do with the Wi-Fi?
    Also, is there any "Thank you" button?

  7. #7
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    29,807
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: RTL8723be WiFi not working

    Secure boot stops all drivers from being loaded if is it not signed in the kernel, this is new in 16.04 an above.

    There is not a thank you button, please use thread tools at the top of the page to mark the thread solved.
    You can not turn it back on or it will stop the driver from loading again unless you create a key for the driver but that is more difficult.
    Thanks

  8. #8
    Join Date
    Jun 2016
    Beans
    15

    Re: RTL8723be WiFi not working

    Thank you for explaining!

  9. #9
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    29,807
    Distro
    Ubuntu 20.04 Focal Fossa

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