I have linux ubuntu installed on my Lenovo Ideapad3, with Realtek network adapter. I connect to any wifi, since last Thursday. I tried as written in many blogs, one of them works. Which was to switch 6.5.0-21-generic version of kernel when booting my laptop. That way it only connects to old router which is 2.4Ghz. As I understood while reading all these days many articles, I turned off my Tp link modem Archer C6 separately for 2.4 Ghz and 5Ghz, changed to 802.11n but does not work anyway. I blacklisted kernel drivers in modprobe.d/blacklist.conf and then even bring back balcklisted module. Cannot go any further, would appreciate any assistance.
https://pastebin.ubuntu.com/p/Zj5Zm3Prt4/
$ lsmod | grep rtw_8852be
rtw_8852be 12288 0
rtw_8852b 409600 1 rtw_8852be
rtw89pci 94208 1 rtw_8852be
$ systemctl status NetworkManager.service
● NetworkManager.service - Network Manager
Loaded: loaded (/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2024-03-19 23:47:45 +04; 25min ago
Docs: man:NetworkManager(8)
Main PID: 854 (NetworkManager)
Tasks: 3 (limit: 16482)
Memory: 11.7M
CPU: 977ms
CGroup: /system.slice/NetworkManager.service
└─854 /usr/sbin/NetworkManager --no-daemon
Mar 20 00:10:07 administrator-IdeaPad-3-15ABA7 NetworkManager[854]: <info> [1710879007.7888] device (p2p-dev-wlp2s0): supplicant management interface state: >
Mar 20 00:10:17 administrator-IdeaPad-3-15ABA7 NetworkManager[854]: <info> [1710879017.9037] device (wlp2s0): supplicant interface state: disconnected -> sca>
Mar 20 00:10:17 administrator-IdeaPad-3-15ABA7 NetworkManager[854]: <info> [1710879017.9037] device (p2p-dev-wlp2s0): supplicant management interface state: >
Mar 20 00:10:19 administrator-IdeaPad-3-15ABA7 NetworkManager[854]: <warn> [1710879019.0586] device (wlp2s0): Activation: (wifi) association took too long, f>
Mar 20 00:10:19 administrator-IdeaPad-3-15ABA7 NetworkManager[854]: <info> [1710879019.0587] device (wlp2s0): state change: config -> failed (reason 'ssid-no>
Mar 20 00:10:19 administrator-IdeaPad-3-15ABA7 NetworkManager[854]: <info> [1710879019.0590] manager: NetworkManager state is now DISCONNECTED
Mar 20 00:10:19 administrator-IdeaPad-3-15ABA7 NetworkManager[854]: <warn> [1710879019.0592] device (wlp2s0): Activation: failed for connection 'TP-LINK_54EA>
Mar 20 00:10:19 administrator-IdeaPad-3-15ABA7 NetworkManager[854]: <info> [1710879019.0594] device (wlp2s0): state change: failed -> disconnected (reason 'n>
Mar 20 00:10:21 administrator-IdeaPad-3-15ABA7 NetworkManager[854]: <info> [1710879021.4152] device (wlp2s0): supplicant interface state: scanning -> disconn>
Mar 20 00:10:21 administrator-IdeaPad-3-15ABA7 NetworkManager[854]: <info> [1710879021.4153] device (p2p-dev-wlp2s0): supplicant management interface state: >
$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: wlp2s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DORMANT group default qlen 1000
link/ether f4:6a:dd:78:a4:91 brd ff:ff:ff:ff:ff:ff
$ nmcli device status
DEVICE TYPE STATE CONNECTION
wlp2s0 wifi disconnected --
p2p-dev-wlp2s0 wifi-p2p disconnected --
lo loopback unmanaged --
$ lsmod | grep rtw
rtw_8852be 12288 0
rtw_8852b 409600 1 rtw_8852be
rtw89pci 94208 1 rtw_8852be
rtw89core 880640 2 rtw89pci,rtw_8852b
mac80211 1720320 2 rtw89pci,rtw89core
cfg80211 1318912 3 rtw89core,mac80211,rtw_8852b
$ rfkill list
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: yes
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
~$ lspci -nnk -d ::0280
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. Device [10ec:b852]
Subsystem: Lenovo Device [17aa:4853]
Kernel driver in use: rtw89_8852be
Kernel modules: rtw89_8852be, rtw_8852be
[10ec:b852]
, and how they solved it. – user535733 Mar 20 '24 at 17:01