Please find the first bad -rc* kernel between v4.10 to v4.13 from  that has this issue, thanks.
http://kernel.ubuntu.com/~kernel-ppa/mainline -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1750385 Title: Poor wifi signal with RTL8723BE and 4.13.0-32 kernel Status in linux package in Ubuntu: Confirmed Bug description: When using Linux Mint 18.3 alongside with the 4.13.0-32 kernel the wifi signal is really really poor (while almost sitting on the respective router) whereas with the 4.10.0-38 it works like charm. I had to use a configuration file for getting the wifi to work properly (/etc/modprobe.d/rtl8723be.conf: options rtl8723be fwlps=0 ips=0 ant_sel=1) but chaning the antenna from 1 to 0 did not change anything with the 4.13 kernel. I am also running Manjaro Linux with the 4.14 kernel on my machine where the wifi is also working just fine (with antenna 0 though). cat /proc/version_signature: Ubuntu 4.10.0-38.42~16.04.1-generic 4.10.17 (I tried using ubuntu-bug linux but it didn't work [The report belongs to a package that is not installed.]) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1750385/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : email@example.com Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp