Every month or so all my devices lose internet and the only way to connect them all back is to disconnect them from the DNS server that Pihole is running.

I set my Pihole to have a static IP but for some reason after around a month or maybe longer, it just fails. This has happened 4 times over the last while and the only fix is to essentially uninstall everything on my Pihole, disable it, and then reconfigure it from scratch again.

I’m not sure what’s going on so any help would be appreciated.

  • MigratingtoLemmy@lemmy.worldEnglish
    493·
    1 year ago

    If you can’t access your server and your router’s web interface, that’s a subnetting/DHCP allocation issue. Nothing to do with Pi-Hole.

    For reference, there’s 2 ways to allocate static addresses to devices:

    1. Define DHCP range, and configure the application to use a static address outside of the allocation pool.
    2. Give out static addresses by MAC.

    “Skill issue bro” /s

    • PerogiBoi@lemmy.caOPEnglish
      18·
      1 year ago

      Definitely a skill issue haha. I’m brand new to this stuff so I’m trying to learn as fast as possible. Appreciate the help and the explanations!

      • fuzzy_feeling@programming.devEnglish
        1·
        1 year ago

        I vote for 60 day lease time, iirc the clients try to get a new lease when half of the time is over, so they can keep the ip.

        • NaibofTabr@infosec.pubEnglish
          2·
          1 year ago

          Maybe, but I suspect it’s working like this:

          • Pi boots then requests locally configured IP from DHCP server
          • DHCP server grants 30 day lease for requested IP
          • Pihole runs fine for awhile, DNS requests are properly handled
          • IP lease expires, DHCP server returns IP to available address pool but doesn’t reassign it to anything yet
          • time passes
          • Random wireless device connects to router, DHCP server assigns IP to new device
          • DNS requests to Pihole fail because the IP was assigned to the recently connected wireless device

          This would explain why Pihole appears to cause problems every month, sometimes a little longer.