diff --git a/.gitea/workflows/publish-image.yaml b/.gitea/workflows/publish-image.yaml
index e658d48..4b339f4 100644
--- a/.gitea/workflows/publish-image.yaml
+++ b/.gitea/workflows/publish-image.yaml
@@ -23,6 +23,9 @@ jobs:
     steps:
       - name: Debug Network MTU
         run: |
+          # 1. Install diagnostic tools (Runner is Ubuntu/Debian based)
+          sudo apt-get update && sudo apt-get install -y iproute2 iputils-ping
+
           echo "--- Network Config ---"
           ip link