diff --git a/.github/workflows/nix.yaml b/.github/workflows/nix.yaml
index 785e0dbd..a847899e 100644
--- a/.github/workflows/nix.yaml
+++ b/.github/workflows/nix.yaml
@@ -351,7 +351,7 @@ jobs:
           name: rosenpass
           authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
       - name: Check
-        run: nix flake check . --print-build-logs --option min-free 10G
+        run: nix flake check . --print-build-logs --max-jobs 1 #  --option min-free 10G
   x86_64-linux---whitepaper-upload:
     name: Upload whitepaper x86_64-linux
     runs-on: ubicloud-standard-2-ubuntu-2204
diff --git a/tests/integration/rpsc-test.nix b/tests/integration/rpsc-test.nix
index 2e3ce9ab..dff4698f 100644
--- a/tests/integration/rpsc-test.nix
+++ b/tests/integration/rpsc-test.nix
@@ -327,11 +327,11 @@ in
     """)
 
     for m in [peerA, peerB, peerakeyexchanger, peerbkeyexchanger]:
-      m.wait_for_unit("network-online.target")
+      m.wait_for_unit("network-online.target") # rpsc-test 1
 
     ${lib.optionalString multiPeer ''
       for m in [peerC, peerckeyexchanger]:
-        m.wait_for_unit("network-online.target")
+        m.wait_for_unit("network-online.target")  # rpsc-test 2
     ''}
 
     # Generate the normal wireguard key pairs
diff --git a/tests/legacy-distro-packaging.nix b/tests/legacy-distro-packaging.nix
index 2a44aa18..76a81b27 100644
--- a/tests/legacy-distro-packaging.nix
+++ b/tests/legacy-distro-packaging.nix
@@ -6,24 +6,28 @@
 
 let
   wg-deb = pkgs.fetchurl {
-    url = "https://ftp.de.debian.org/debian/pool/main/w/wireguard/wireguard-tools_1.0.20210914-1.1_amd64.deb";
-    hash = "sha256-s/hCUisQLR19kEbV6d8JXzzTAWUPM+NV0APgHizRGA4=";
+    url = "https://ftp.de.debian.org/debian/pool/main/w/wireguard/wireguard-tools_1.0.20250521-1_amd64.deb";
+    hash = "sha256-c8Z1pIAofTxlqOF9XXXnF1w+4PRHRQbCN8xMJlSNunQ=";
+    # url = "https://ftp.de.debian.org/debian/pool/main/w/wireguard/wireguard-tools_1.0.20210914-1.1_amd64.deb";
+    # hash = "sha256-s/hCUisQLR19kEbV6d8JXzzTAWUPM+NV0APgHizRGA4=";
   };
   wg-rpm = pkgs.fetchurl {
-    url = "https://mirrors.n-ix.net/fedora/linux/releases/40/Everything/x86_64/os/Packages/w/wireguard-tools-1.0.20210914-6.fc40.x86_64.rpm";
-    hash = "sha256-lh6kCW5gh9bfuOwzjPv96ol1d6u1JTIr/oKH5QbAlK0=";
+    url = "https://mirrors.n-ix.net/fedora/linux/releases/44/Everything/x86_64/os/Packages/w/wireguard-tools-1.0.20250521-3.fc44.x86_64.rpm";
+    hash = "sha256-Tue1yrMgUTUzl+I7KO5fPVAYRNxiBDpGoKYohWrfPM8=";
+    # url = "https://mirrors.n-ix.net/fedora/linux/releases/40/Everything/x86_64/os/Packages/w/wireguard-tools-1.0.20210914-6.fc40.x86_64.rpm";
+    # hash = "sha256-lh6kCW5gh9bfuOwzjPv96ol1d6u1JTIr/oKH5QbAlK0=";
   };
 
   pkgsDirDeb = pkgs.runCommand "packages" { } ''
     mkdir $out
     cp ${rosenpass-deb} $out/rosenpass.deb
-    cp ${wg-deb} $out/wireguard.deb
+    cp ${wg-deb} $out/wireguard-tools.deb
     cp ${./prepare-test.sh} $out/prepare-test.sh
   '';
   pkgsDirRpm = pkgs.runCommand "packages" { } ''
     mkdir $out
     cp ${rosenpass-rpm} $out/rosenpass.rpm
-    cp ${wg-rpm} $out/wireguard.rpm
+    cp ${wg-rpm} $out/wireguard-tools.rpm
     cp ${./prepare-test.sh} $out/prepare-test.sh
   '';
 
@@ -41,7 +45,7 @@ let
       };
       testScript = ''
         vm.wait_for_unit("multi-user.target")
-        vm.succeed("${installPrefix} /mnt/share/wireguard.${suffix}")
+        vm.succeed("${installPrefix} /mnt/share/wireguard-tools.${suffix}")
         vm.succeed("${installPrefix} /mnt/share/rosenpass.${suffix}")
         vm.succeed("bash /mnt/share/prepare-test.sh")
 
@@ -73,6 +77,7 @@ in
     suffix = "deb";
     source = pkgsDirDeb;
   };
+  
   package-deb-ubuntu-23_10 = test {
     tester = pkgs.testers.nonNixOSDistros.ubuntu."23_10";
     installPrefix = "dpkg --install";
@@ -85,12 +90,14 @@ in
     suffix = "deb";
     source = pkgsDirDeb;
   };
-  package-deb-ubuntu-26_04 = test {
-    tester = pkgs.testers.nonNixOSDistros.ubuntu."24_04";
-    installPrefix = "dpkg --install";
-    suffix = "deb";
-    source = pkgsDirDeb;
-  };
+  # not yet available:
+  # package-deb-ubuntu-26_04 = test {
+  #   tester = pkgs.testers.nonNixOSDistros.ubuntu."26_04";
+  #   installPrefix = "dpkg --install";
+  #   suffix = "deb";
+  #   source = pkgsDirDeb;
+  # };
+
   # Fedora 40 is not available for download anymore
   # package-rpm-fedora_40 = test {
   #   tester = pkgs.testers.nonNixOSDistros.fedora."40";
diff --git a/tests/systemd/rosenpass.nix b/tests/systemd/rosenpass.nix
index d1eddf82..a0827c1c 100644
--- a/tests/systemd/rosenpass.nix
+++ b/tests/systemd/rosenpass.nix
@@ -156,13 +156,15 @@ in
     { ... }:
     ''
       from os import system
+      import time
       rosenpass = "${pkgs.rosenpass}/bin/rosenpass"
 
       start_all()
 
       for machine in [server, client]:
         machine.wait_for_unit("multi-user.target")
-        machine.wait_for_unit("network-online.target")
+        time.sleep(10)
+        machine.wait_for_unit("network-online.target") # rosenpass
 
       with subtest("Key, Config, and Service Setup"):
         for name, machine, remote in [("server", server, client), ("client", client, server)]:
diff --git a/tests/systemd/rp.nix b/tests/systemd/rp.nix
index c0acdb8a..12b0f4db 100644
--- a/tests/systemd/rp.nix
+++ b/tests/systemd/rp.nix
@@ -112,13 +112,15 @@ in
     { ... }:
     ''
       from os import system
+      import time
       rp = "${pkgs.rosenpass}/bin/rp"
 
       start_all()
 
       for machine in [server, client]:
         machine.wait_for_unit("multi-user.target")
-        machine.wait_for_unit("network-online.target")
+        time.sleep(10)
+        machine.wait_for_unit("network-online.target") # rp
 
       with subtest("Key, Config, and Service Setup"):
         for name, machine, remote in [("server", server, client), ("client", client, server)]:
diff --git a/wireguard-tools-1.0.20250521-3.fc44.x86_64.rpm b/wireguard-tools-1.0.20250521-3.fc44.x86_64.rpm
new file mode 100644
index 00000000..cee75fb1
Binary files /dev/null and b/wireguard-tools-1.0.20250521-3.fc44.x86_64.rpm differ