• Wifi problems (can connect to router, but no internet)


    Hey guys,

    I installed Antergos a couple of days ago and the whole experience so far has been really good. My thanks to the developers and to the users of this forum.

    However, I have run into an issue with my WiFi connection. In short, I am able to connect to my router, but my connection is either extremely slow (11-1 Mb/s) or I don’t have internet at all. The strangest thing is, that during the installation my wireless connection was working flawlessly.

    So in more detail (I apologize for the long post) — I am dual-booting Windows 10 Creators and Antergos on the same hard drive on a Dell Inspiron 15R 5521 laptop. My laptop uses the Intel Centrino Wireless-N 2230 adapter. lspci -k confirmed that the adapter is recognized and it is running the correct driver: iwlwifi version 18.168.6.1. Continuing on with ip link, which confirmed that the interface was created and was set up (wlp8s0 in my case). And iw dev wlp8s0 link showed that I was indeed connected to my router. I have also received a static IP address, as seen by ifconfig. Everything seems fine with my netmask. Everything seems fine in the ip route as well. The problem isn’t in the DNS either(I have tried manually setting the server to 8.8.8.8).

    However, with iwconfig I find an abysmal bit rate of 11mb/s, which according to the gnome network manager is even 1mb/s. Pining google.com results in ping: www.google.com: Name or service not known, pinging 8.8.8.8 results in 4 packets transmitted, 0 received, 100% packet loss, time 3031ms and finally pinging my local gateway results in the same: 4 packets transmitted, 0 received, 100% packet loss, time 3040ms. It is interesting to note the output of dmesg | grep -i error:

    [    0.621941] acpi PNP0A08:00: _OSC failed (AE_ERROR); disabling ASPM
    [    8.381922] ACPI Error: [\_SB_.PCI0.GFX0.DD02._BCL] Namespace lookup failure, AE_NOT_FOUND (20170119/psargs-363)
    [    8.381935] ACPI Error: Method parse/execution failed [\_SB.PCI0.PEG0.PEGP.DD02._BCL] (Node ffff8802568ce1b8), AE_NOT_FOUND (20170119/psparse-543)
    [ 3541.309829] iwlwifi 0000:08:00.0: Microcode SW error detected.  Restarting 0x2000000.
    [ 3541.310760] iwlwifi 0000:08:00.0:                 FH_TSSR_TX_ERROR_REG: 0X00000000
    [ 3541.310913] iwlwifi 0000:08:00.0: Start IWL Error Log Dump:
    

    So it appears that the problem is from iwlwifi. I have found that people have had similar problems with different Inter adapters. The solution for them was downgrading the kernel version, which I still haven’t tried. I find it strange that the driver would have problem, when I can connect to the router. Furthermore, I don’t understand how everything worked during the live usb session.

    In summary, I have spent the last 2 days fighting with this problem and I now feel somehow lost. I do not understand enough about networking to be able to solve this myself. I would be really grateful for any help or suggestions with this issue.

    Thank you in advance.

  • Hi there and welcome to Antergos!

    Perhaps this article could help you?
    https://antergos.com/wiki/uncategorized/how-to-choose-your-mirrors-before-installing-antergos/

    Keep trying, never give up. In the end, you will find that it was all worth it

    https://sourceforge.net/projects/antergos-deepin
    https://linuxbasicssite.wordpress.com

  • @Keegan Thanks, but my problem is with wifi in general, not just packages, perhaps I wasn’t clear. With a wired connection everything works fine, but with wifi my connection isn’t just slow, it is practically non-existent.

  • @orhi said in Wifi problems (can connect to router, but no internet):

    The solution for them was downgrading the kernel version, which I still haven’t tried. I find it strange that the driver would have problem, when I can connect to the router. Furthermore, I don’t understand how everything worked during the live usb session.

    Yes, that would be my first choice.
    Install linux-lts: sudo pacman -S linux-lts
    and remember to rebuild grub menu: sudo grub-mkconfig -o /boot/grub/grub.cfg

    You’ll find the linux LTS kernel in the grub menu in “advanced options” (or something like that, I don’t remember exactly)

    Cheers!

  • @karasu Hey, I am about to go to bed, but before that I installed the linux-lts, updated grub and rebooted into the new session. So the iwlwifi problems, that appeared in dmesg | grep -i error are now gone, when connected to the router my bit rate is normal and I can ping my router - great! However now I still fail to ping 8.8.8.8 (manually setting the DNS server didn’t change that) and as soon as I open a page in Chromium, I am disconnected from the router and stuck in an endless attempt to reconnect - yikes (or at least until I turn off/on my wireless interface once or multiple times in some cases). Otherwise, all the other commands in my OP are identical.

  • Glad to hear it’s at least better than it used to be!

    Keep trying, never give up. In the end, you will find that it was all worth it

    https://sourceforge.net/projects/antergos-deepin
    https://linuxbasicssite.wordpress.com

  • Hi,

    Do you have another computer to test your wifi and discard it’s not a router problem? (or another OS in the same one).

  • @karasu Hey, thanks for your help so far! Yeah, my Windows 10 dual-boot has perfect wifi. In addition I have tested this with a phone as well and a macbook. So I am pretty sure this is driver related, unfortunately.

  • Hi. I don’t know if this will help, but you mentioned you thought iwlwifi was part of the problem and as I was googling around I found this post on Ubuntu forums that involves your hardware and iwlwifi:

    https://askubuntu.com/questions/881674/intel-centrino-wireless-n-2230-wont-connect-keeps-asking-for-password

    and that the fix that worked for that person is on this page:

    https://askubuntu.com/questions/799301/wifi-asks-for-password-again-and-again

    Perhaps somebody more knowledgeable that me can chime in please?

    I hope you find a fix soon.

    Edit: This person describes his problems (which to me, sound similar to yours) also used the above fix to resolve his issue: http://www.stevenmaude.co.uk/posts/my-wifis-connected-but-theres-no

  • Hello, I am back with the final volume of my wifi misfortunes. I have finally found my problem and a solution to it. So it turns out that the root of my wifi problems was the not so peaceful coexistence of wifi and bluetooth in my (apparently old) network adapter. After turning my bluetooth off and connecting my wireless mouse through the receiver, everything works like a charm. I have also found a fix, which also allows you to have both bluetooth and wireless together - just add:

    options iwlwifi bt_coex_active=0 
    

    to your iwlwifi config file, as detailed here or here.

    Well, I decided to put the solution here, as it may be useful to people in the future. I also wanted to thank everybody in this thread for taking the time out and helping me with this issue.

  • @orhi said in Wifi problems (can connect to router, but no internet):

    I also wanted to thank everybody in this thread for taking the time out and helping me with this issue.

    Your welcome friend! It was our pleasure:slight_smile:.

    Keep trying, never give up. In the end, you will find that it was all worth it

    https://sourceforge.net/projects/antergos-deepin
    https://linuxbasicssite.wordpress.com

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