diff --git a/hosts/yodaTux/configuration.nix b/hosts/yodaTux/configuration.nix
index 295d72b..8d9aad3 100644
--- a/hosts/yodaTux/configuration.nix
+++ b/hosts/yodaTux/configuration.nix
@@ -74,12 +74,30 @@
   # S Sat Sep 23 16:11:52 2023 p4 kernel: TSC found unstable after boot, most likely due to broken BIOS. Use 'tsc=unstable'.
   boot.kernelParams = [ "tsc=unstable" ];
 
+  # LAN Internet is not working, only WiFi.
+  # Replacing in-kernel r8169 with r8168 fixes this.
+  #   https://github.com/avnik/nixos-configs/blob/master/modules/r8168.nix
+  #   https://github.com/poscat0x04/nixos-configuration/blob/master/hardware/profiles/r8168.nix
+  #   https://github.com/NixOS/nixpkgs/blob/961c422b48b3458a01a9c0f2a24e25a1d61018e9/pkgs/os-specific/linux/r8168/default.nix#L51-L52
+  # But this requires an old kernel version (we use 5.15 LTS) as r8168 is broken for kernels >= 6
+  #   https://github.com/NixOS/nixpkgs/issues/256329
+  # This does not help, there is a compile error
+  #   nixpkgs.config.allowBroken = true;
+  #
+  boot.blacklistedKernelModules = [ "r8169" ];
+  boot.extraModulePackages = [
+    config.boot.kernelPackages.r8168
+  ];
+
   # List all available kernel versions:
   #   `nix repl` -> `:l <nixpkgs>` -> `pkgs.linuxPackages` and press `TAB`
   # Default.
   #boot.kernelPackages = pkgs.linuxPackages;
   # Latest.
-  boot.kernelPackages = pkgs.linuxPackages_latest;
+  #boot.kernelPackages = pkgs.linuxPackages_latest;
+  # LTS, see https://endoflife.date/linux
+  boot.kernelPackages = pkgs.linuxPackages_5_15;
+  #boot.kernelPackages = pkgs.linuxPackages_6_1;
   # Hardened.
   # https://archlinux.org/packages/extra/x86_64/linux-hardened/
   # -> https://github.com/anthraxx/linux-hardened