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I installed Ubuntu on my HP Stream 11, I was pleased to find out that my WiFi worked but the range is terrible. To have a good signal I have to be right next router.

How can I improve the quality of the signal?

$ lspci
00:00.0 Host bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series SoC Transaction Register (rev 21)
00:02.0 VGA compatible controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Integrated Graphics Controller (rev 21)
00:0b.0 Signal processing controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Power Management Controller (rev 21)
00:14.0 USB controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series USB xHCI Controller (rev 21)
00:1a.0 Encryption controller: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series Trusted Execution Engine (rev 21)
00:1b.0 Audio device: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series High Definition Audio Controller (rev 21)
00:1c.0 PCI bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #1 (rev 21)
00:1c.3 PCI bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCI Express Port #4 (rev 21)
00:1f.0 ISA bridge: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx Series PCU (rev 21)
00:1f.3 SMBus: Intel Corporation Atom/Celeron/Pentium Processor x5-E8000/J3xxx/N3xxx SMBus Controller (rev 21)
01:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01)
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
Maki
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agamer569
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  • I just posted the lspci just now I didn't post it in the comments because it was too long – agamer569 Mar 13 '18 at 13:07
  • Except this is different because the wifi was excellent sitting next to the router unlike the 16.10 problem where the wifi disconnects next to the router – agamer569 Mar 13 '18 at 13:11
  • @agamer569 Forget the description, just try the solution(s). – pomsky Mar 13 '18 at 13:13
  • Do I have to enter all of those commands or am I missing something? If I am, tell me what I am. – agamer569 Mar 13 '18 at 13:17
  • You enter the commands to see what setting works best, then you set the module parameter. Some people using Larry Finger's github driver might need a different setting than those using the original kernel driver. The problem is the same, HP started using only one antenna wire with RTL8723BE chipsets a few years ago and this affects many of their laptops – Jeremy31 Mar 13 '18 at 13:29
  • The commands broke my laptop! I can no longer have wifi! The WiFi option to choose what WiFi I want is no longer there! – agamer569 Mar 13 '18 at 13:39
  • When I type down in the better command, it says mod probe: Error: could not insert ‘rtl8723be’: invalid argument – agamer569 Mar 13 '18 at 13:41
  • Yes it does show – agamer569 Mar 13 '18 at 13:46
  • When I try doing modprobe 2(The one that worked better), it said could not insert ‘rtl8723be’” invalid argument – agamer569 Mar 13 '18 at 13:50
  • Use echo "options rtl8723be ant_sel=2" | sudo tee /etc/modprobe.d/rtl8723be.conf then sudo rm /etc/modprobe.d/rtl8723be-ant.conf then finally sudo modprobe -r rtl8723be && sleep 15 && sudo modprobe rtl8723be – Jeremy31 Mar 13 '18 at 13:55
  • I’ll try that when I get back home – agamer569 Mar 13 '18 at 14:05
  • I fixed it! Remember echo "options rtl8723be ant_sel=X" | sudo tee /etc/modprobe.d/rtl8723be-ant.conf? I replaced the X with 2 and rebooted and the wifi range was great! No need for sudo modprobe rtl8723be ant_sel=2. – agamer569 Mar 13 '18 at 19:42

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