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I have no Wi-Fi connection after the last update on ubuntu 18.04.1 4.15.0-33-generic. The WLAN card Rtl8723be is detected but no networks are visible. I have already tried the variants:

sudo modprobe-v rtl8723be ant_sel = 2
sudo modprobe-v rtl8723be ant_sel = 1

Unfortunately, no change.
What can I do?

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1 Answer 1

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This is a known bug with the 4.15.0-33 kernel and the rtl8723be wireless device.

See this bug report here or here.

Booting to a different kernel (-32) may workaround this problem until they fix it.

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  • Also the 4.15.0-34 kernel, so you might need to watch out for kernel autoremoval. And thanks for the bug pointer. The second link is more useful.
    – rici
    Sep 24, 2018 at 16:36

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