I have an interesting problem. I set up a new Lubuntu (Ubuntu 20.04.2 LTS) on an older machine (Lenovo T410i).
During the installation (Lubuntu style via simple grafics interfase (I dont know the correct name)), I added the wifi credentials. Now, as I installed the MATE GUI, I have the regular network manager in the task bar. This shows: Wi-fi networks device not ready
Yet, I am connected and can see the traffic on the systems monitor (and write this support request).
The problem: I need to connect to another wifi than the current one, thus I need to be able to change the wifi.
What I have already tried:
restarting the network-manager and using "autoremove" Wifi networks device not ready
replace the QCA6174 folder (do not remember the askubuntu link anymore)
in "Software & Updates" are no "Additional Drivers" listed
rebootet several times
tried to search for wifi-networks via terminal, but the wifi-adapter seems not available.
I expect some driver flaw, but have no idea anymore.
What would you suggest? What information could help?
Jack
----------- update ----------
return on: sudo lshw -c network (I just removed the IP adress)
*-network DISABLED
description: Ethernet interface
product: 82577LM Gigabit Network Connection
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: enp0s25
version: 06
serial: 5c:ff:35:0d:09:d3
capacity: 1Gbit/s
width: 32 bits
clock: 33MHz
capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.12-1 latency=0 link=no multicast=yes port=twisted pair
resources: irq:28 memory:f2600000-f261ffff memory:f2625000-f2625fff ioport:1820(size=32)
*-network
description: Wireless interface
product: Centrino Wireless-N 1000 [Condor Peak]
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlp3s0
version: 00
serial: 00:26:c7:4f:77:a4
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=5.4.0-73-generic firmware=39.31.5.1 build 35138 ip=xx.xx.xx.xx latency=0 link=yes multicast=yes wireless=IEEE 802.11
resources: irq:32 memory:f2400000-f2401fff
return on: lspci -knn | grep Net -A3; rfkill list
return on: 00:19.0 Ethernet controller [0200]: Intel Corporation 82577LM Gigabit Network Connection [8086:10ea] (rev 06)
Subsystem: Lenovo 82577LM Gigabit Network Connection [17aa:2153]
Kernel driver in use: e1000e
Kernel modules: e1000e
00:1a.0 USB controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b3c] (rev 06)
--
03:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 1000 [Condor Peak] [8086:0084]
Subsystem: Intel Corporation Centrino Wireless-N 1000 BGN [8086:1315]
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: tpacpi_bluetooth_sw: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
lshw -c networkandlspci -knn | grep Net -A3; rfkill list? This will show information about your network hardware. I wonder if you’re experiencing the old 802.11n reliability issue that is solved with11n_disable=1– matigo May 21 '21 at 16:10