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Thread: Wireless connected but not opening webpages. Ubuntu 16.04

  1. #41
    Join Date
    Mar 2011
    Location
    A land far, far, away...
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    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: Wireless connected but not opening webpages. Ubuntu 16.04

    Ok, it could be that the "certificate" for authentication on your machine has expired but lets just put a pin in that for now. (Your cert is at '/home/federico/ca-bundle_uam.pem'.) Lets try to look at the logs for error messages. First I would like to know the Kernel Version:
    Code:
    cat /etc/lsb-release; uname -a
    Then lets look at the logs for anything error related to the wireless driver "ath"
    Code:
    dmesg | grep ath
    I am looking mainly for errors in the log files. so hopefully there will be something useful here.
    Now lets backup the drivers to your "Downloads" folder for safe keeping:
    Code:
    cp -r /lib/firmware/ath10k ~/Downloads/
    Only if the 'cp' command completed successfully, continue to remove any modified drivers:
    Code:
    sudo rm -r /lib/firmware/ath10k
    Now lets re-install the firmware: (please see the note*)
    Code:
    sudo apt-get install --reinstall linux-firmware
    Now lets disable the Power management in the configuration for the Wifi device:
    Code:
    sudo sed -i 's/wifi.powersave = 3/wifi.powersave = 2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
    This will find and replace "wifi.powersave = 3" with "wifi.powersave = 2" in the file '/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf' effectively turning off power management in the config for the network adapter. This should keep it from dropping connections. After you post the output from these six commands, please reboot.


    *NOTE: Posts number 25, 26, 27, 30, and 31 all have a serious typographical errors! When you were working through the steps "Jeff666" posted some info and commands in numerous posts for you to try which may have helped, but both of you failed to notice that your wireless adapter device name is "wlp7s0" not "wlp3s7". Oops! Syntax is important. It seems like months of wasted time from February to March!

    It also looks like your problem was already solved in another post '
    https://ubuntuforums.org/showthread.php?t=2317452' (Ubuntu 14.04 not 16.04) but for the exact same wireless adapter. Have you tried that? Here are the compiled and edited results from that post:
    sudo apt-get install git
    git clone https://github.com/kvalo/ath10k-firmware.git
    sudo cp -r ath10k-firmware/QCA6174 /lib/firmware/ath10k/
    sudo mv /lib/firmware/ath10k/QCA6174/hw2.1/firmware-5.bin_SW_RM.1.1.1-00157-QCARMSWPZ-1 /lib/firmware/ath10k/QCA6174/hw2.1/firmware-5.bin
    sudo shutdown -H now

    On the "up side" of things, your hardware seems to be ok, there aren't any network collisions, dropped packets, jumbo frames, or network jabber that would normally be caused by a misconfigured/defective network adapter when connected to a network.
    Last edited by ahears; July 25th, 2017 at 08:14 AM.
    Links: Boot Info: How To | Grub 2 Basics: How To |LUKS Crash Course
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  2. #42
    Join Date
    Jul 2011
    Beans
    5

    Re: Wireless connected but not opening webpages. Ubuntu 16.04

    Yesterday my Wifi stopped working, and the symptoms seems like the ones in this thread


    It finds the Wifi router and gets a DHCP answer. With tcpdump I can see that ARP requests are received on the Wifi interface. But somehow I think that my packets are not transmitted. All the attempts I make is also in tcpdump, but I never gets any answer, except for ARP.
    Booting in windows partition find that the Wifi works fine there. Also the USB dongle for cable networks is working.


    Code:
    sudo tcpdump -i wlp2s0
    tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
    listening on wlp2s0, link-type EN10MB (Ethernet), capture size 262144 bytes
    11:04:52.504427 IP 192.168.2.15.60262 > 192.168.2.1.domain: 36411+ A? mtalk.google.com. (34)
    11:04:52.507089 IP 192.168.2.15.60262 > 192.168.2.1.domain: 15508+ PTR? 1.2.168.192.in-addr.arpa. (42)
    11:04:53.822256 IP 192.168.2.15.60262 > 192.168.2.1.domain: 55475+ A? docs.google.com. (33)
    11:04:53.827609 IP 192.168.2.15.60262 > 192.168.2.1.domain: 41941+ A? play.google.com. (33)
    11:04:53.984964 IP 192.168.2.15.60262 > 192.168.2.1.domain: 7745+ A? clients4.google.com. (37)
    11:04:53.987486 IP 192.168.2.15.60262 > 192.168.2.1.domain: 3089+ A? www.google.com. (32)
    11:04:53.991646 IP 192.168.2.15.60262 > 192.168.2.1.domain: 16977+ A? clientservices.googleapis.com. (47)
    11:05:13.127821 ARP, Request who-has 192.168.2.10 tell 192.168.2.1, length 28
    11:05:13.128184 IP 192.168.2.15.60262 > 192.168.2.1.domain: 46160+ PTR? 10.2.168.192.in-addr.arpa. (43)
    Here my computer asks for the MAC address of the router, and gets an answer.
    Code:
    11:06:00.052817 ARP, Request who-has 192.168.2.1 tell 192.168.2.15, length 28
    11:06:00.057330 ARP, Reply 192.168.2.1 is-at 00:50:7f:ad:b2:c8 (oui Unknown), length 28

    I don't know what happened yesterday, except that I rebooted. I do have automatic security updates enabled though.

    I do have ath10k driver problems, but they does not seem to affect the Wifi networking, as the problem existed before I lost Wifi connectivity.
    Code:
    zgrep -a 'Direct firmware load for ath10k' /var/log/syslog.3.gz 
    Aug 10 21:33:54 kjeld-XPS-15-9560 kernel: [    3.878610] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/pre-cal-pci-0000:02:00.0.bin failed with error -2
    Aug 10 21:33:54 kjeld-XPS-15-9560 kernel: [    3.878618] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/cal-pci-0000:02:00.0.bin failed with error -2
    Aug 10 21:33:54 kjeld-XPS-15-9560 kernel: [    3.878862] ath10k_pci 0000:02:00.0: Direct firmware load for ath10k/QCA6174/hw3.0/firmware-5.bin failed with error -2
    Last edited by vasa1; August 13th, 2017 at 10:57 AM.

  3. #43
    Join Date
    Dec 2007
    Beans
    12,540

    Re: Wireless connected but not opening webpages. Ubuntu 16.04

    Please use Code tags instead of quote tags for posting data. Thanks!

  4. #44
    Join Date
    Jul 2011
    Beans
    5

    Re: Wireless connected but not opening webpages. Ubuntu 16.04

    Code:
    sudo apt-get install git
    git clone https://github.com/kvalo/ath10k-firmware.git
    Code:
    sudo cp -r ath10k-firmware/QCA6174 /lib/firmware/ath10k/
    sudo mv /lib/firmware/ath10k/QCA6174/hw2.1/firmware-5.bin_SW_RM.1.1.1-00157-QCARMSWPZ-1 /lib/firmware/ath10k/QCA6174/hw2.1/firmware-5.bin
    sudo shutdown -H now
    


    I thought I had tried this earlier, but not quite. Instead of overwriting
    QCA6174 I did a mv to save the contents, and thus copied a fresh QCA6174 in. That did not work, apparently there are some files which still is needed, and then this solution works.

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