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Thread: QCA6174 connectivity full to limited randomly

  1. #1
    Join Date
    Oct 2018
    Beans
    4

    QCA6174 connectivity full to limited randomly

    My Wifi goes from connectivity full to limited without any apparent reasons:
    Code:
    :~$ nmcli general
    STATE      CONNECTIVITY  WIFI-HW  WIFI     WWAN-HW  WWAN    
    connected  full          enabled  enabled  enabled  enabled
    Code:
    :~$ nmcli general
    STATE                  CONNECTIVITY  WIFI-HW  WIFI     WWAN-HW  WWAN    
    connected (site only)  limited       enabled  enabled  enabled  enabled
    When this happens I can see the wifi icon turning in an interrogation mark and only currently open connections stay open.
    Any new connection will resolve in 404.

    Information of my hardware:
    Code:
    :~$ sudo lshw -C network
      *-network
           description: Wireless interface
           product: QCA6174 802.11ac Wireless Network Adapter
           vendor: Qualcomm Atheros
           physical id: 0
           bus info: pci@0000:3e:00.0
           logical name: wlp62s0
           version: 32
           serial: xx:xx:xx:xx:xx:xx
           width: 64 bits
           clock: 33MHz
           capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
           configuration: broadcast=yes driver=ath10k_pci driverversion=4.15.0-36-generic firmware=WLAN.RM.4.4.1-00079-QCARMSWPZ-1 ip=192.168.1.81 latency=0 link=yes multicast=yes wireless=IEEE 802.11
           resources: irq:135 memory:dd200000-dd3fffff
    I'm on an updated Ubuntu 18.04.
    This was not happening with my previous version of Ubuntu (I re-formatted from scratch not long ago).
    The router is still the same and in Windows with the same machine I do not have any issue.

    My guess is the driver I am using, but I am not sure.

    Code:
    :~$ sudo lsmod | grep ath10k
    ath10k_pci             45056  0
    ath10k_core           360448  1 ath10k_pci
    ath                    28672  1 ath10k_core
    mac80211              778240  1 ath10k_core
    cfg80211              622592  3 mac80211,ath,ath10k_core
    Any idea?
    Thanks

  2. #2
    Join Date
    Feb 2008
    Location
    Texas
    Beans
    29,807
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: QCA6174 connectivity full to limited randomly

    Thread moved to Networking & Wireless for a more appropriate fit.

  3. #3
    Join Date
    May 2014
    Location
    /home
    Beans
    10,933
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: QCA6174 connectivity full to limited randomly

    See the wireless script link in my signature and post results

  4. #4
    Join Date
    Oct 2018
    Beans
    4

    Re: QCA6174 connectivity full to limited randomly

    Quote Originally Posted by jeremy31 View Post
    See the wireless script link in my signature and post results
    Thanks Jeremi
    here the pastebin

  5. #5
    Join Date
    May 2014
    Location
    /home
    Beans
    10,933
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: QCA6174 connectivity full to limited randomly

    Do
    Code:
    sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/*
    Reboot, these wifi cards don't have a module that handles power management very well

  6. #6
    Join Date
    Oct 2018
    Beans
    4

    Re: QCA6174 connectivity full to limited randomly

    Thanks Jeremy
    I've just executed the command, from my understanding it was just turning off the power management.

    I will give it try and let you know!
    Thanks for the suggestion.

  7. #7
    Join Date
    Oct 2018
    Beans
    4

    Re: QCA6174 connectivity full to limited randomly

    Quote Originally Posted by jeremy31 View Post
    Do
    Code:
    sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/*
    Reboot, these wifi cards don't have a module that handles power management very well
    Hi @jeremy31
    As you can see, power save is set at 2 now (I restarted the laptop).
    Code:
    :~$ cat /etc/NetworkManager/conf.d/*
    [connection]
    wifi.powersave = 2
    I've been using the laptop for few days and I keep keep having the same issue with the same frequency.

    Any other ideas?

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