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I cannot connect via WiFi and I've tried following the instructions in another question, but I get an error when modprobeing the module rtl8273de.

You can see the commands I ran on a clean install of Ubuntu 18.04 here.

The error is as follows:

No wifi adapter found

I tried modprobeing, but I got the below error:

georgeorwell@georgeorwell:~/rtlwifi_new$ sudo modprobe -r rtl8723de
modprobe: FATAL: Module rtl8723de not found.

I'm using an HP bs15-000xx laptop, and the WiFi was working (albeit rather slowly) before, when I had windows 10 installed.

I'd be happy to paste a config output somewhere...

zx485
  • 2,426
m137o
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  • Thanks Pomsky, I've edited with a paste of all the commands I ran. – m137o Oct 10 '18 at 19:34
  • Hi Kulfy - I followed that until the end, then got the following error:

    could not insert 'rtl8723be': Required key not available

     – m137o Oct 10 '18 at 19:56
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    From the paste bin output I can see that the module was not built. You can't install without building. You need to go back to the "make install" command and make sure it builds without errors. – ARG Oct 10 '18 at 19:56
  • @m137o Kulfy mistakenly suggested a wrong duplicate, that question is about rtl8723be whereas you have rtl8723de. – pomsky Oct 10 '18 at 20:12
  • Thanks, that worked in getting the WiFi up and running, but my signal is extremely weak (even after changing the selected antenna using $ sudo tee /etc/modprobe.d/rtl8723de.conf <<< "options rtl8723de ant_sel=2")

    I have 400Mbps with my cable connected, but nothing more than 12Mbps when using WiFi.

     – m137o Oct 11 '18 at 06:03
  • Try ant_sel=1. Higher number doesn't guarantee greater signal strength. – Kulfy Oct 12 '18 at 11:17

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