Wireless issue on Lenovo Ideapad 320 80xl

[cp21]

I have a open network in my guest house where I stay temporarily and previously whatever I did Mint will connect to this network. It showed connected but webpages will not open. However, I could connect to other password protected networks and everything seemed working but not with this open network. I have dual booted my system with Windows and Windows have no problem connecting to it.

Out of inquisitiveness I today upgraded the kernel to 4.15.12, the problem was still present but when I further upgraded to 4.16 rc6 (the latest mainline) I could now connect to this network! However the connection is rather sluggish and speed is slow I would say. I wonder what changes could have happened.

Any help how to solve this problem with stable kernel is much appreciated as I could not use the Nvidia graphics card in this kernel I suppose..

I have Atheros network adapter.

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$ lspci | egrep -i --color 'network|ethernet'
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
03:00.0 Network controller: Qualcomm Atheros Device 0042 (rev 31)

[kc1di]

Please go to a terminal and post the output of

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inxi -Nn

and

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iwconfig

Thanks.

[cp21]

OK.. here it is.. Right now I am connected to the network and wifi working with the latest kernel..

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$ inxi -Nm
Memory:    No dmidecode memory data: try newer kernel.
Network:   Card-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           driver: r8169
           Card-2: Qualcomm Atheros Device 0042 driver: ath10k_pci
           Card-3: Atheros

$ iwconfig
lo        no wireless extensions.

enp2s0    no wireless extensions.

wlp3s0    IEEE 802.11  ESSID:"BMR"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 00:12:A9:D3:05:79   
          Bit Rate=1 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          Link Quality=54/70  Signal level=-56 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:94   Missed beacon:0

[kc1di]

From what I can find it seems like there was a firmware problem with kernels 4.12. and 4.13 -- this ask Ubuntu posting may be of help.
see the section on install new firmware from git hub. https://askubuntu.com/questions/967355/ ... -10-update
good luck.

[JeremyB]

If it us a firmware issue just do

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sudo apt-get install linux-firmware

I would recommend disabling wifi power management with that chipset

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sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/*

Reboot

[cp21]

No luck with the firmware upgrade as mentioned in the post. Only kernel upgrade to 4.16 makes it possible for now. Anyway thank you for the help. I think there is some issue with accessing open wifi connections with these network cards. As it can connect to secure connections without any problem.

[kc1di]

you can try setting the network security to none -- see if it will connect to that network then.
I'm not sure which desktop your using if it's cinnamon you can to that by clicking on the network manager Icon in the tray and selecting Network Settings then highlight the network in question and there will be a little gear symbol click on that then the security tab and select none and try again. make sure it's the open network you highlighting as you don't want to may your other connections change.
good luck.