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I have an HP laptop (Hp 15R250Tu) with Realtek RTL8723BE WIFI card after upgrading the kernel to 5.4.0-45 generic. The WIFI connection keeps getting Dropped after some time like 15-20 minutes with message Activation of network connection failed and then it won't connect no matter what I do expect the only option left is to restart. Sometimes it won't at all show Wifi option in menu just the Airplane mode is active on toggling it to off the Bluetooth gets on this keeps on going but WIFI doesn't show up. Even I opened up the laptop to swap the antenna wire to(aux port/no.2) and to my surprise there is no second antenna port at all given in wifi card. so all and all the antenna depends on just single connection and this leaves no room to swap the antenna port. Further I tried Live boot strange to see but even the live boot is not showing wireless option I tried both Linux mint and Manjaro.This issue is persistent from many months tried several solutions Larry finger git hub branch, Dkms but not successful.

Questions Referred

  1. realtek-rtl8723be-wifi-drivers-not-working-after-upgrading-to-5-4-0-37
  2. realtek-rtl8723be-wi-fi-incredibly-weak
  3. how-to-permanently-install-wifi-driver-realtek-8723de-in-ubuntu-18-04
  4. wifi-signal-is-weak-in-ubuntu-18-04-with-rtl8723be
  5. wifi-networks-not-found-ubuntu-18-04-with-rtl8723be
  6. how-do-i-get-a-realtek-rtl8723be-wireless-card-to-work
  7. unable-to-connect-wifi-ubuntu-14-04-lts-hp-pavilion-network-driver-rtl8723be

Output from terminal

uname -r

5.4.0-45-generic

dkms status

fwts-efi-runtime-dkms, 18.03.00, 5.4.0-42-generic, x86_64: installed
fwts-efi-runtime-dkms, 18.03.00, 5.4.0-45-generic, x86_64: installed

dmesg | grep -i rtl

[    4.788890] r8169 0000:04:00.0 eth0: RTL8106e, 5c:b9:01:f9:a3:62, XID 449, IRQ 93
[   23.139091] Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[   23.140085] Bluetooth: hci0: RTL: rom_version status=0 version=1
[   23.140088] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_fw.bin
[   23.479730] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_config.bin
[   23.479782] bluetooth hci0: Direct firmware load for rtl_bt/rtl8723b_config.bin failed with error -2
[   23.479798] Bluetooth: hci0: RTL: cfg_sz -2, total sz 22496
[   24.298711] Bluetooth: hci0: RTL: fw version 0x0e2f9f73
[   61.320543] RTL8208 Fast Ethernet r8169-400:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-400:00, irq=IGNORE)
[ 2294.012286] Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[ 2294.014441] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 2294.014458] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_fw.bin
[ 2294.014544] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_config.bin
[ 2294.102350] bluetooth hci0: Direct firmware load for rtl_bt/rtl8723b_config.bin failed with error -2
[ 2294.102409] Bluetooth: hci0: RTL: cfg_sz -2, total sz 22496
[ 2294.995873] Bluetooth: hci0: RTL: fw version 0x0e2f9f73
[ 2314.407626] Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[ 2314.409564] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 2314.409578] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_fw.bin
[ 2314.409671] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_config.bin
[ 2314.409809] bluetooth hci0: Direct firmware load for rtl_bt/rtl8723b_config.bin failed with error -2
[ 2314.409860] Bluetooth: hci0: RTL: cfg_sz -2, total sz 22496
[ 2315.249387] Bluetooth: hci0: RTL: fw version 0x0e2f9f73
[ 2322.273698] RTL8208 Fast Ethernet r8169-400:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-400:00, irq=IGNORE)
[ 2335.384040] Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[ 2335.385039] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 2335.385044] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_fw.bin
[ 2335.540042] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_config.bin
[ 2335.540104] bluetooth hci0: Direct firmware load for rtl_bt/rtl8723b_config.bin failed with error -2
[ 2335.540138] Bluetooth: hci0: RTL: cfg_sz -2, total sz 22496
[ 2335.868705] RTL8208 Fast Ethernet r8169-400:00: attached PHY driver [RTL8208 Fast Ethernet] (mii_bus:phy_addr=r8169-400:00, irq=IGNORE)
[ 2336.393069] Bluetooth: hci0: RTL: fw version 0x0e2f9f73

rfkill list

3: hci0: Bluetooth
    Soft blocked: yes
    Hard blocked: no

iwconfig

enp4s0    no wireless extensions.

enp0s29u1u2  no wireless extensions.

lo        no wireless extensions.

modinfro rtl8723be

filename:       /lib/modules/5.4.0-45-generic/kernel/drivers/net/wireless/realtek/rtlwifi/rtl8723be/rtl8723be.ko
firmware:       rtlwifi/rtl8723befw_36.bin
firmware:       rtlwifi/rtl8723befw.bin
description:    Realtek 8723BE 802.11n PCI wireless
license:        GPL
author:         Realtek WlanFAE <wlanfae@realtek.com>
author:         PageHe  <page_he@realsil.com.cn>
srcversion:     775916BF393FDE315ED454E
alias:          pci:v000010ECd0000B723sv*sd*bc*sc*i*
depends:        rtlwifi,rtl8723-common,rtl_pci,btcoexist,mac80211

journalctl link here
dmesg link here
lspci here
wireless info txt here

EDIT 1:
dkms status

fwts-efi-runtime-dkms, 18.03.00, 5.4.0-45-generic, x86_64: installed
fwts-efi-runtime-dkms, 18.03.00, 5.4.0-47-generic, x86_64: installed

sudo lshw -C network

*-generic DISABLED        
       description: Wireless interface
       product: Illegal Vendor ID
       vendor: Illegal Vendor ID
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlp2s0
       version: ff
       serial: c4:8e:8f:af:99:7b
       width: 32 bits
       clock: 66MHz
       capabilities: bus_master vga_palette cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8723be driverversion=5.4.0-47-generic firmware=N/A latency=255 link=no maxlatency=255 mingnt=255 multicast=yes wireless=IEEE 802.11
       resources: irq:17 ioport:2000(size=256) memory:90700000-90703fff
  *-network
       description: Ethernet interface
       product: RTL810xE PCI Express Fast Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: enp4s0
       version: 07
       serial: 5c:b9:01:f9:a3:62
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 firmware=rtl8106e-1_0.0.1 06/29/12 latency=0 link=no multicast=yes port=MII
       resources: irq:19 ioport:1000(size=256) memory:90500000-90500fff memory:90400000-90403fff
3
  • Ping me with a comment that starts with @heynnema
    – heynnema
    Sep 10, 2020 at 19:53
  • Re-seating the modem card brought it back to life. Now modinfo rtl8723be | grep -i parm and look for the antenna switching parm.
    – heynnema
    Sep 12, 2020 at 15:32
  • @heynnema currently I have not set any parameters still the WIFI is strong and up I will check this thoroughly and will give the updates.
    – Tushar
    Sep 12, 2020 at 16:21

1 Answer 1

1

From the chat, and comments...

We removed the modem/bluetooth card from its socket, and re-inserted it, and now the modem is working again. Signal is strong.

Use modinfo rtl8723be | grep -i parm to see any available parameter settings.

8
  • Sir I am extremely sorry for late reply was out of station for few days. The wifi is working but still sometime the issue arises and signal gets dropped.
    – Tushar
    Sep 21, 2020 at 15:25
  • @Tushar Does dkms status show any output? Edit your question and show me any output... also sudo lshw -C network.
    – heynnema
    Sep 21, 2020 at 15:29
  • Right now the airplane mode is ON the wifi is not detected.
    – Tushar
    Sep 21, 2020 at 15:57
  • @Tushar Can you turn off airplane mode? Go ahead and show me the two commands.
    – heynnema
    Sep 21, 2020 at 16:07
  • @Tushar Here's the clue. The lshw command shows "Illegal Vendor ID". I suspect that the card needs reseating... only this time... clean the gold contacts with Isopropyl alcohol... or... the card may be defective.
    – heynnema
    Sep 21, 2020 at 16:24

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