Can't connect to ethernet and wireless network Linux Mint 19

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nagpaljatin
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Can't connect to ethernet and wireless network Linux Mint 19

Post by nagpaljatin » Fri Aug 24, 2018 9:43 am

Recently I install Linux Mint 19(Single Boot) in my Laptop. When my laptop is freshly started, and i connect to wireless or ethernet, the connection works fine, but after i disconnect it, and again try to connect it, it keeps showing
connecting
in the network menu, with frequent display of the same message
Disconnected You are now offline.
again and again. For most of the times this is the case, although sometimes even connecting on startup won't work, or sometimes 2nd time connecting may work.
This problem had been there since I've installed Linux Mint 19.

deepakdeshp
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Re: Can't connect to ethernet and wireless network Linux Mint 19

Post by deepakdeshp » Fri Aug 24, 2018 12:22 pm

Please post output of

Code: Select all

inxi -Fxz
If I have helped you solve a problem, please add [SOLVED] to your first post title, it helps other users looking for help, and keeps the forum clean.
I am using Mint 19 Cinnamon 64 bit with AMD A8/7410 processor . Memory 8GB

nagpaljatin
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Re: Can't connect to ethernet and wireless network Linux Mint 19

Post by nagpaljatin » Fri Aug 24, 2018 12:36 pm

Code: Select all

System:    Host: HP Kernel: 4.15.0-30-generic x86_64 bits: 64 gcc: 7.3.0
           Desktop: Cinnamon 3.8.8 (Gtk 3.22.30-1ubuntu1)
           Distro: Linux Mint 19 Tara
Machine:   Device: laptop System: Hewlett-Packard product: HP Notebook v: Type1ProductConfigId serial: N/A
           Mobo: Hewlett-Packard model: 80C2 v: 96.50 serial: N/A
           UEFI: Insyde v: F.23 date: 07/11/2017
Battery    BAT1: charge: 26.3 Wh 100.0% condition: 26.3/41.4 Wh (64%)
           model: COMPAL PABAS0241231 status: Full
CPU:       Dual core Intel Core i5-5200U (-MT-MCP-) 
           arch: Broadwell rev.4 cache: 3072 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 8799
           clock speeds: max: 2700 MHz 1: 1939 MHz 2: 1641 MHz 3: 1701 MHz
           4: 1315 MHz
Graphics:  Card-1: Intel HD Graphics 5500 bus-ID: 00:02.0
           Card-2: Advanced Micro Devices [AMD/ATI] Sun XT [Radeon HD 8670A/8670M/8690M / R5 M330 / M430]
           bus-ID: 0d:00.0
           Display Server: x11 (X.Org 1.19.6 )
           drivers: modesetting,ati,radeon (unloaded: fbdev,vesa)
           Resolution: 1366x768@60.32hz
           OpenGL: renderer: Mesa DRI Intel HD Graphics 5500 (Broadwell GT2)
           version: 4.5 Mesa 18.0.5 Direct Render: Yes
Audio:     Card-1 Intel Broadwell-U Audio Controller
           driver: snd_hda_intel bus-ID: 00:03.0
           Card-2 Intel Wildcat Point-LP High Def. Audio Controller
           driver: snd_hda_intel bus-ID: 00:1b.0
           Sound: Advanced Linux Sound Architecture v: k4.15.0-30-generic
Network:   Card-1: Realtek RTL8101/2/6E PCIE Fast/Gigabit Ethernet controller
           driver: r8169 v: 2.3LK-NAPI port: 5000 bus-ID: 07:00.0
           IF: enp7s0 state: down mac: <filter>
           Card-2: Broadcom Limited BCM43142 802.11b/g/n
           driver: wl bus-ID: 13:00.0
           IF: wlp19s0 state: dormant mac: <filter>
Drives:    HDD Total Size: 1000.2GB (2.9% used)
           ID-1: /dev/sda model: HGST_HTS541010A9 size: 1000.2GB temp: 0C
Partition: ID-1: / size: 240G used: 20G (9%) fs: ext4 dev: /dev/sda2
           ID-2: swap-1 size: 7.68GB used: 0.00GB (0%) fs: swap dev: /dev/sda6
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 49.0C mobo: N/A gpu: 43.0
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 221 Uptime: 30 min Memory: 1115.0/7892.8MB
           Init: systemd runlevel: 5 Gcc sys: 7.3.0
           Client: Shell (bash 4.4.191) inxi: 2.3.56
Last edited by nagpaljatin on Sat Aug 25, 2018 12:58 am, edited 1 time in total.

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Joe2Shoe
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Re: Can't connect to ethernet and wireless network Linux Mint 19

Post by Joe2Shoe » Fri Aug 24, 2018 7:07 pm

This works for me on a laptop with the same Broadcom wifi card.

1. Run in Terminal:
sudo apt-get purge bcmwl-kernel-source && sudo apt-get install firmware-b43-installer

2. Reboot.

This removes the Broadcom bcmwl-kernel-source drivers (Broadcom 802.11 Linux STA wireless driver source v.6.30.223.271+bdcm-0ubuntu4) & installs the Broadcom firmware-b43-installer drivers.

You may also want to disable power-saving management on the card.
1. To turn off power management, edit /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf:
sudo gedit /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf

[connection]
wifi.powersave = 3

2. Change the 3 to a 2.

3. Save.

4. Exit.

5. Reboot.

6. Then run:
iwconfig

If it worked, you should see Power Management:off.
"Tolerance is the refuge of men without conviction."
"Common sense is not so common" - Voltaire

nagpaljatin
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Re: Can't connect to ethernet and wireless network Linux Mint 19

Post by nagpaljatin » Sat Aug 25, 2018 12:41 am

The problem is still unsolved
Following is a screenshot after following all the operations, and several reboots, and several times trying same commands
Image
In the driver manager, there should be firmware-b43-installer, and no bcmwl-kernel-source, but it's exact opposite.

nagpaljatin
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Re: Can't connect to ethernet and wireless network Linux Mint 19

Post by nagpaljatin » Sat Aug 25, 2018 12:44 am

If you are unable to see the screenshot, open this URL:
https://drive.google.com/file/d/1spebWK ... sp=sharing

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