I have a USB wifi adaper tp-link model TL-WN725N. It was working fine but suddenly today it's saying that "No wifi adapters found". So I tried installing a driver from this page. But the installation failed. make all command wasn't compiling then I checked the website again. In the website it says, Operating System: Linux (kernel 2.6.18 ~ 3.19.3). But my kernal is 5.11.0-25-generic. And the USB device finds all the wifi that are available. But it can't connect to them. What can I do now?
This is the error that I am getting:
$HOME/Documents/Driver/include/osdep_service_linux.h:261:8: error: ‘_timer’ {aka ‘struct timer_list’} has no member named ‘data’
261 | ptimer->data = (unsigned long)cntx;
| ^~
$HOME/Documents/Driver/include/osdep_service_linux.h:262:2: error: implicit declaration of function ‘init_timer’; did you mean ‘_init_timer’? [-Werror=implicit-function-declaration]
262 | init_timer(ptimer);
| ^~~~~~~~~~
| _init_timer
Some other useful command outputs:
➜ ifconfig
enp2s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 10:7b:44:32:b5:91 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 3866 bytes 321595 (321.5 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 3866 bytes 321595 (321.5 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlx7cc2c61b3890: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::f871:26fc:9f55:13ed prefixlen 64 scopeid 0x20<link>
ether 7c:c2:c6:1b:38:90 txqueuelen 1000 (Ethernet)
RX packets 3 bytes 348 (348.0 B)
RX errors 0 dropped 1 overruns 0 frame 0
TX packets 19 bytes 3460 (3.4 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
➜ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 13d3:5a01 IMC Networks USB2.0 VGA UVC WebCam
Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 008: ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
More outputs:
########## wireless info START ##########
Report from: 07 Aug 2021 05:18 +06 +0600
Booted last: 07 Aug 2021 00:00 +06 +0600
Script from: 25 Jan 2020 03:34 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 20.04.2 LTS
Release: 20.04
Codename: focal
##### kernel ############################
Linux 5.11.0-25-generic #27~20.04.1-Ubuntu SMP Tue Jul 13 17:41:23 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller [10ec:8136] (rev 07)
Subsystem: ASUSTeK Computer Inc. RTL810xE PCI Express Fast Ethernet controller [1043:200f]
Kernel driver in use: r8169
##### lsusb #############################
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 031: ID 0bda:b721 Realtek Semiconductor Corp. Bluetooth Radio
Bus 001 Device 003: ID 13d3:5a01 IMC Networks USB2.0 VGA UVC WebCam
Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 035: ID 0bda:8179 Realtek Semiconductor Corp. RTL8188EUS 802.11n Wireless Network Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
##### secure boot #######################
EFI variables are not supported on this system
##### lsmod #############################
r8188eu 421888 0
lib80211 16384 1 r8188eu
cfg80211 888832 1 r8188eu
asus_nb_wmi 32768 0
wmi_bmof 16384 0
asus_wmi 36864 1 asus_nb_wmi
sparse_keymap 16384 1 asus_wmi
wmi 32768 3 asus_wmi,wmi_bmof,mfd_aaeon
video 49152 2 asus_wmi,i915
##### interfaces ########################
##### ifconfig ##########################
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback <MAC address> brd <MAC address>
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp2s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
link/ether <MAC 'enp2s0' [IF1]> brd <MAC address>
14: wlx<IF from MAC [IF2]>: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether <MAC 'wlx<IF from MAC [IF2]>' [IF2]> brd <MAC address>
##### iwconfig ##########################
lo no wireless extensions.
enp2s0 no wireless extensions.
wlx<IF from MAC [IF2]> unassociated ESSID:"" Nickname:"<WIFI@REALTEK>"
Mode:Managed Frequency=2.412 GHz Access Point: Not-Associated
Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
##### route #############################
##### resolv.conf #######################
[777 root '/etc/resolv.conf' -> '../run/systemd/resolve/stub-resolv.conf']
nameserver 127.0.0.53
options edns0 trust-ad
##### network managers ##################
Installed:
NetworkManager
Running:
root 695 1 0 Aug06 ? 00:00:29 /usr/sbin/NetworkManager --no-daemon
##### NetworkManager info ###############
GENERAL.DEVICE: wlx<IF from MAC [IF2]>
GENERAL.TYPE: wifi
GENERAL.NM-TYPE: NMDeviceWifi
GENERAL.DBUS-PATH: /org/freedesktop/NetworkManager/Devices/14
GENERAL.VENDOR: Realtek Semiconductor Corp.
GENERAL.PRODUCT: RTL8188EUS 802.11n Wireless Network Adapter
GENERAL.DRIVER: r8188eu
GENERAL.DRIVER-VERSION: 5.11.0-25-generic
GENERAL.FIRMWARE-VERSION: --
GENERAL.HWADDR: <MAC 'wlx<IF from MAC [IF2]>' [IF2]>
GENERAL.MTU: 1500
GENERAL.STATE: 30 (disconnected)
GENERAL.REASON: 42 (The supplicant is now available)
GENERAL.IP4-CONNECTIVITY: 1 (none)
GENERAL.IP6-CONNECTIVITY: 1 (none)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/net/wlx<IF from MAC [IF2]>
GENERAL.IP-IFACE: --
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: no
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
CAPABILITIES.SRIOV: no
INTERFACE-FLAGS.UP: yes
INTERFACE-FLAGS.LOWER-UP: no
INTERFACE-FLAGS.CARRIER: no
WIFI-PROPERTIES.WEP: yes
WIFI-PROPERTIES.WPA: yes
WIFI-PROPERTIES.WPA2: yes
WIFI-PROPERTIES.TKIP: yes
WIFI-PROPERTIES.CCMP: yes
WIFI-PROPERTIES.AP: no
WIFI-PROPERTIES.ADHOC: yes
WIFI-PROPERTIES.2GHZ: yes
WIFI-PROPERTIES.5GHZ: no
WIFI-PROPERTIES.MESH: no
WIFI-PROPERTIES.IBSS-RSN: no
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/3
CONNECTIONS.AVAILABLE-CONNECTIONS[1]: 353f4586-0b86-4c1f-86aa-40c066ce5b31 | Redmi
GENERAL.DEVICE: enp2s0
GENERAL.TYPE: ethernet
GENERAL.NM-TYPE: NMDeviceEthernet
GENERAL.DBUS-PATH: /org/freedesktop/NetworkManager/Devices/2
GENERAL.VENDOR: Realtek Semiconductor Co., Ltd.
GENERAL.PRODUCT: RTL810xE PCI Express Fast Ethernet controller
GENERAL.DRIVER: r8169
GENERAL.DRIVER-VERSION: 5.11.0-25-generic
GENERAL.FIRMWARE-VERSION: --
GENERAL.HWADDR: <MAC 'enp2s0' [IF1]>
GENERAL.MTU: 1500
GENERAL.STATE: 20 (unavailable)
GENERAL.REASON: 2 (Device is now managed)
GENERAL.IP4-CONNECTIVITY: 1 (none)
GENERAL.IP6-CONNECTIVITY: 1 (none)
GENERAL.UDI: /sys/devices/pci0000:00/0000:00:1c.4/0000:02:00.0/net/enp2s0
GENERAL.IP-IFACE: --
GENERAL.IS-SOFTWARE: no
GENERAL.NM-MANAGED: yes
GENERAL.AUTOCONNECT: yes
GENERAL.FIRMWARE-MISSING: no
GENERAL.NM-PLUGIN-MISSING: no
GENERAL.PHYS-PORT-ID: --
GENERAL.CONNECTION: --
GENERAL.CON-UUID: --
GENERAL.CON-PATH: --
GENERAL.METERED: unknown
CAPABILITIES.CARRIER-DETECT: yes
CAPABILITIES.SPEED: unknown
CAPABILITIES.IS-SOFTWARE: no
CAPABILITIES.SRIOV: no
INTERFACE-FLAGS.UP: yes
INTERFACE-FLAGS.LOWER-UP: no
INTERFACE-FLAGS.CARRIER: no
WIRED-PROPERTIES.CARRIER: off
CONNECTIONS.AVAILABLE-CONNECTION-PATHS: --
SSID BSSID MODE CHAN FREQ RATE SIGNAL BARS SECURITY ACTIVE IN-USE
Redmi <MAC 'Redmi' [AC2]> Infra 11 2462 MHz 44 Mbit/s 62 ▂▄▆_ WPA2 no
Free wifi <MAC 'Free wifi' [AC1]> Infra 6 2437 MHz 44 Mbit/s 23 ▂___ WPA2 no
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
##### NetworkManager config #############
[[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]]
[connection]
wifi.powersave = 3
[[/etc/NetworkManager/NetworkManager.conf]]
[main]
plugins=ifupdown,keyfile
[ifupdown]
managed=false
[device]
wifi.scan-rand-mac-address=no
[[/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf]]
[main]
dns=systemd-resolved
[[/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf]]
[keyfile]
unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma
[[/usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf]]
[connectivity]
uri=http://connectivity-check.ubuntu.com/
[[/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf]]
[device-mac-addr-change-wifi]
match-device=driver:rtl8723bs,driver:rtl8189es,driver:r8188eu,driver:8188eu,driver:eagle_sdio,driver:wl
wifi.scan-rand-mac-address=no
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/Sir MMR Hall - 4th Floor Root.nmconnection]] (600 root)
[connection] id=Sir MMR Hall - 4th Floor Root | type=wifi | permissions=
[wifi] mac-address-blacklist= | ssid=Sir MMR Hall - 4th Floor Root
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/Sir MMR Hall-Block 2.nmconnection]] (600 root)
[connection] id=Sir MMR Hall-Block 2 | type=wifi | permissions=
[wifi] mac-address-blacklist= | ssid=Sir MMR Hall-Block 2
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/Redmi.nmconnection]] (600 root)
[connection] id=Redmi | type=wifi | permissions=
[wifi] mac-address-blacklist= | ssid=Redmi
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/NETGEAR85.nmconnection]] (600 root)
[connection] id=NETGEAR85 | type=wifi | permissions=
[wifi] mac-address-blacklist= | ssid=NETGEAR85
[ipv4] method=auto
[ipv6] method=auto
##### Netplan config ####################
[/etc/netplan/01-network-manager-all.yaml]
network:
version: 2
renderer: NetworkManager
##### iw reg get ########################
Region: Asia/Dhaka (based on set time zone)
global
country 00: DFS-UNSET
(2402 - 2472 @ 40), (N/A, 20), (N/A)
(2457 - 2482 @ 20), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, PASSIVE-SCAN
(5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW, PASSIVE-SCAN
(5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW, PASSIVE-SCAN
(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, PASSIVE-SCAN
(5735 - 5835 @ 80), (N/A, 20), (N/A), PASSIVE-SCAN
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
##### iwlist channels ###################
lo no frequency information.
enp2s0 no frequency information.
wlx<IF from MAC [IF2]> 13 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Current Frequency:2.412 GHz (Channel 1)
##### iwlist scan #######################
lo Interface doesn't support scanning.
enp2s0 Interface doesn't support scanning.
Channel occupancy:
1 APs on Frequency:2.437 GHz (Channel 6)
1 APs on Frequency:2.462 GHz (Channel 11)
wlx<IF from MAC [IF2]> Scan completed :
Cell 01 - Address: <MAC 'Free wifi' [AC1]>
ESSID:"Free wifi"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.437 GHz (Channel 6)
Encryption key:on
Bit Rates:300 Mb/s
Extra:rsn_ie=30140100000fac040100000fac040100000fac020000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Quality=0/100 Signal level=23/100
Cell 02 - Address: <MAC 'Redmi' [AC2]>
ESSID:"Redmi"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.462 GHz (Channel 11)
Encryption key:on
Bit Rates:108 Mb/s
Extra:rsn_ie=30140100000fac040100000fac040100000fac020c00
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Quality=0/100 Signal level=69/100
##### module infos ######################
[r8188eu]
filename: /lib/modules/5.11.0-25-generic/kernel/drivers/staging/rtl8188eu/r8188eu.ko
description: Realtek Wireless Lan Driver
license: GPL
depends: cfg80211,lib80211
retpoline: Y
intree: Y
name: r8188eu
vermagic: 5.11.0-25-generic SMP mod_unload modversions
parm: rtw_ips_mode:The default IPS mode (int)
parm: ifname:The default name to allocate for first interface (charp)
parm: if2name:The default name to allocate for second interface (charp)
parm: rtw_initmac:charp
parm: rtw_channel_plan:int
parm: rtw_channel:int
parm: rtw_wmm_enable:int
parm: rtw_vrtl_carrier_sense:int
parm: rtw_vcs_type:int
parm: rtw_ht_enable:int
parm: rtw_cbw40_enable:int
parm: rtw_ampdu_enable:int
parm: rtw_rx_stbc:int
parm: rtw_ampdu_amsdu:int
parm: rtw_power_mgnt:int
parm: rtw_smart_ps:int
parm: rtw_wifi_spec:int
parm: rtw_antdiv_cfg:int
parm: rtw_antdiv_type:int
parm: rtw_enusbss:int
parm: rtw_hwpdn_mode:int
parm: rtw_max_roaming_times:The max roaming times to try (uint)
parm: rtw_fw_iol:FW IOL (int)
parm: rtw_mc2u_disable:int
parm: rtw_80211d:Enable 802.11d mechanism (int)
parm: rtw_notch_filter:0:Disable, 1:Enable, 2:Enable only for P2P (uint)
parm: debug:Set debug level (1-9) (default 1) (int)
parm: monitor_enable:Enable monitor interface (default: false) (bool)
[cfg80211]
filename: /lib/modules/5.11.0-25-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
depends:
retpoline: Y
intree: Y
name: cfg80211
vermagic: 5.11.0-25-generic SMP mod_unload modversions
parm: bss_entries_limit:limit to number of scan BSS entries (per wiphy, default 1000) (int)
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
##### module parameters #################
[r8188eu]
debug: 1
if2name: wlan%d
ifname: wlan%d
monitor_enable: N
rtw_80211d: 0
rtw_ampdu_amsdu: 0
rtw_ampdu_enable: 1
rtw_antdiv_cfg: 2
rtw_antdiv_type: 0
rtw_cbw40_enable: 3
rtw_channel: 1
rtw_channel_plan: 66
rtw_enusbss: 0
rtw_fw_iol: 1
rtw_ht_enable: 1
rtw_hwpdn_mode: 2
rtw_initmac: (null)
rtw_ips_mode: 1
rtw_max_roaming_times: 2
rtw_mc2u_disable: 0
rtw_notch_filter: 0
rtw_power_mgnt: 1
rtw_rx_stbc: 1
rtw_smart_ps: 2
rtw_vcs_type: 1
rtw_vrtl_carrier_sense: 2
rtw_wifi_spec: 0
rtw_wmm_enable: 1
[cfg80211]
bss_entries_limit: 1000
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
##### modprobe options ##################
[/etc/modprobe.d/amd64-microcode-blacklist.conf]
blacklist microcode
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac
[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off
[/etc/modprobe.d/intel-microcode-blacklist.conf]
blacklist microcode
[/etc/modprobe.d/iwlwifi.conf]
remove iwlwifi \
(/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
&& /sbin/modprobe -r mac80211
##### rc.local ##########################
grep: /etc/rc.local: No such file or directory
##### pm-utils ##########################
##### udev rules ########################
##### dmesg #############################
[20207.578982] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_fw.bin
[20207.617403] Bluetooth: hci0: RTL: loading rtl_bt/rtl8723b_config.bin
[20207.617471] bluetooth hci0: Direct firmware load for rtl_bt/rtl8723b_config.bin failed with error -2
[22647.782046] r8188eu 1-1:1.0 wlx<IF from MAC [IF2]>: renamed from wlan0 (repeated 2 times)
########## wireless info END ############
And another thing is that it scans the available wifi. But it can't connect with them.
~ ➜ sudo dmesg | grep -e wlx -e r8188
[ 124.081192] r8188eu: module is from the staging directory, the quality is unknown, you have been warned.
[ 124.105802] usbcore: registered new interface driver r8188eu
[ 124.172294] r8188eu 1-1:1.0 wlx7cc2c61b3890: renamed from wlan0
[ 127.683225] IPv6: ADDRCONF(NETDEV_CHANGE): wlx7cc2c61b3890: link becomes ready
[ 847.092120] r8188eu 1-1:1.0 wlx7cc2c61b3890: renamed from wlan0
[ 875.921812] IPv6: ADDRCONF(NETDEV_CHANGE): wlx7cc2c61b3890: link becomes ready
We are still unable to discover why the device, using the usual built-in kernel driver, doesn’t connect as expected. I notice, however, that the driver version here is newer than the built-in driver. https://github.com/lwfinger/rtl8188eu
Let’s install it and see if it helps.
With a temporary internet connection by ethernet, tethering or whatever means possible, open a terminal and do:
Remove and reinsert your USB wireless and tell us if there is any improvement.
At each newer kernel version update, after the requested restart, please do:
Please retain these instructions and the rtl8188eu directory for that time.