I am desperate!
Nothing in my home setup of wifi has changed, the only thing changed was installing an update for GrapheneOS and rebooting and ever since then, my home wifi is not able to connect any more.

My Pixel 6 tries and then after a few seconds gives back the message: ip-configuration issue ("IP- Konfigurationsfehler", since I am located in Germany).

Any other devices in our household remains functionable, also: I have not actively changed or tempered with any settings whatsoever and also not the slightest issue with wifi connections before (using GrapheneOS with this particular device for almost 4 months now!

EDIT: I am using a WPA2/WPA3 encryption on our home network, if that may be relevant...

Open for suggestions where to look - and mostly: to look for what exactly, since I cannot figure out what has changed.
I am always keeping my device on the latest OS release (stable branch), just installed the last update 8using my LTE connection)

  • [deleted]

It is not always easy to analyze the issue when there are lot of missing information.
Another user had very similar post recently, but he tried to connect to hidden wi-fi, and that is not your case.

I would suggest check in this order one by one till it works:
I guess that you restarted your router already. Just in case that you haven't, do it.

  • check on your phone if you - by mistake - haven't declined network access to any system apps
  • check your router's settings, and reset the network settings on your phone
  • renew your IP lease
  • reset your router and create new network, just in case with different SSID

    reset your router and create new network, just in case with different SSID

    You must be joking!

    hey there,

    so, I did the obvious things:

    • reboot my phone
    • restartet the router
    • reset the network settings on my phone
    • PW tripplechecked and confirmed, even scanned the QR code with same result

    just went to the grocery store and I was able to connect to their public wifi with no issues

    So, no expert here, but this leaves me with the conclusion, that something with GrapheneOS is wrong on my phone in particular combinations of factors, regarding my home network.

    Let me give the details to my home wifi and you can think, if there is something out of the ordinary (remember at least 7 other devices are still using the AS IS wifi and my phone was, too up until very recently!)

    • WPA/WP2/WPA3 encryption setting used to secure the wifi (most secure, recommended setting from my provider, Telekom, btw)
    • 2.4 and 5 GHz are enabled
    • open SSID (not hidden!)
    • WiFi type 6

    [deleted]

    the router reset is considered the last, nuklear option.
    As I said, plenty other devices USE the wifi as is and no changes were applied to the network - and being forced to enter new Wifi connection on every single device where only one phone is having an issue and - as it turns out (see my other post) - obviously particularly with my home network only, seems hardly justifyable.

    Okay, here is something REALLY strange: when looking on my router into the network settings and the connected devioces, I see like at least 50 entries counting up on the last x.x.x.XX set of numbers for the IP address, all being listed as disconnected

      okay, and with one of those "ghost" IP addresses deleted I am back online with my phone.

      Any explantion, anyone?

        satansbraten Every Time your GOS device connects to your router you get a different ip. You can change this behaviour if you go to > known wifi (no idea how it is exactly in english language) > your home wifi an change (under "security") from random mac to use device mac. Than your ip will stay the same. I seems like your router has no ip possibilities left.

        Change this security option only with your home wifi. Random mac is, IMHO, an important security feature.

        dirksche
        How long the IP address assigned is reserved
        Will up to your router/AP configuration

        Thanks to everyone for the help, mich appreciated.
        Can I close this discussion in MX own?

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        satansbraten
        You can think of it as that the IP address which is given to your phone has reserved place on your router for a certain amount of time. When you have a longer "lease time", it means that that your router expect your IP address to connect.
        If you lower the value of your lease time in your router's setting, your list of previously connected IP addresses will clear faster. It means that if you have a different IP address when you connect to your router, you need to set your lease time accordingly, so there is always a spot for you to connect. Otherwise you cannot connect, because all spots are already taken. I try to explain it as simple as I am able, but it might be still a bit confusing.

        If it is too complicated just search the web for: "how to renew IP lease." You will also learn the command for your terminal or CMD or whatever you are using.

        d4f2 The strange thing: with LOS and activated random mac I never had this issue with changing IPs. But since I connect my device with GOS, every connection affect a new IP. Even if I disconnect for just a minute

          dirksche https://grapheneos.org/features#wifi-privacy

          GrapheneOS supports per-connection MAC randomization and enables it by default. This is a more private approach than the standard persistent per-network random MAC used by modern Android.

          This is a privacy feature added by GrapheneOS. You do have the option to make it per-network instead of per-connection, however.

          Never use device mac address. It exposes you everywhere, all the time.

          Use per connection mac randomization, or per network in worst case scenarios.

          As others mentioned, main problem is with your router. reduce lease time. You can also increase your IP allocation pool. from 50 to higher, but this alone won't solve your problem. The main problem is your router not releasing unused mac addresses.