Posts by treysis

  • LibreELEC / Kodi doesn't reconnect automatically to wifi after a blackout

    Thanks. I can rule out poor signal strength as router and RPi4 are in direct vicinity of each other and also because the error is 100% reproducible and the workaround also works 100% of the time. Also both 2.4 and 5 GHz networks are affected. Once connection is established, there is no issue with it and I never had any dropouts/disconnects.

    I'll post the full log but it'll take some time to redact as there's lots of sensitive information (neighboring WiFi stations in particular) contained within.

    Can I somehow get the wireless stack to be more verbose in its output?

  • LibreELEC / Kodi doesn't reconnect automatically to wifi after a blackout

    Had a look at the journal now. Nothing obvious. iwd just fails telling me the key was invalid (which of course it is not as it works after the next boot). Unfortunately, only connmand is verbose, iwd not so much:

  • LibreELEC / Kodi doesn't reconnect automatically to wifi after a blackout

    So, I didn't have time much to investigate in too much detail, yet. A quick "dmesg | grep brcm" didn't show any differences between working and non-working boot.

    I thought to try and see if the problem disappears when switching from 5 GHz WiFi to 2.4 GHz WiFi, but no difference.

    However, now having both 2.4 and 5 GHz WiFi SSIDs set for auto-connect, I have a working workaround: after a "faulty" boot connecting to the previous WiFi will fail. However, now due to the second available WiFi, LE will connect to the other one and vice versa. So at least I'm left with working WiFi after each boot, no matter if faulty or not.

    But WHY the connection to the previous WiFi fails, is still up for investigation when I have more time again.

  • LibreELEC / Kodi doesn't reconnect automatically to wifi after a blackout

    Quote from VLouis

    Also keep in your mind, you aren't the single person who use an RPi3 with LE and wifi connection. So using the search function on this forum could help too.

    Yeah, that's how I ended up in this thread! Although I am using RPi4.

    Quote from VLouis

    So I pulled of the power and connected back after few seconds. The LE booted without any wifi issue...

    And WiFi automatically connected to your AP after that?

    Quote from VLouis

    You got till now from two people the advice to install an LE13 nightly build and try it. So if you don't have a cheap, at least 8GB SDcard and a hour for this

    I will! But yeah, I actually don't have a spare card lying around :/.

    Quote from chewitt

    ConnMan logs are somewhat human readable .. look for errors. Feel free to pastebin them somewhere (don't upload here please).

    Will try looking at it! Always been a bit difficult for me figuring out where logfiles are with Kodi or LE in general. I also believe some state gets stuck for whatever weird reason.

    Quote from VLouis

    I'm using almost same config, RPi3B, wifi

    3B or 3B+? 3B uses a different WiFi chip (Broadcom BCM43438) than RPi3B+/RPi4 (both Cypress CYW43455). So that would also point to a driver-related issue.

  • LibreELEC / Kodi doesn't reconnect automatically to wifi after a blackout

    Hm, maybe both. (I have to add I am not so sure anymore about the behavior in 11.) Bc after cold boot it will also ask for the wifi password when I try to connect manually. However, as I said, after reboot it works fine again. So the password is still remembered. So it seems as if the system or ConnMan think that the authentication didn't work.

    I also tried the suggested script but it can't fix all issues. First, the 'systemctl restart connman' does fix the underlying problem: after running this command I can (manually) reconnect to the WiFi without having to enter the password, but it doesn't do so automatically. So manually is the issue, bc now all services complain after boot that there were obviously 'errors in name resolution'.

    I also tried putting the systemctl restart connman command to the autostart.sh script, but looks like the timing there isn't right. I can have it wait so that I at least can manually connect, but it won't do the auto connect, unfortunately (yes, auto connect is set to true!).

    Probably I could adjust the script to connect to the specific wifi profile, but that would lock it to my specific wifi. Well, would be good enough workaround but ideally I'd like to at least identify the underlying root cause!

  • LibreELEC / Kodi doesn't reconnect automatically to wifi after a blackout

    Nope, definitely not the antenna, or it wouldn't be so reproducible. It's only after cold boot. Never after reboot. 100%. RPi is next to the AP.

    The problem exists since at least 11. Why would a nightly solve it? There's nothing in the changelogs.

    How would using a cable solve a WiFi problem? I am not complaining about connectivity issues, but about a WiFi problem.

    It's more likely a problem with iwd and/or the WiFi driver.