diff --git a/.woodpecker.yml b/.woodpecker.yml
index ff06f47..6d2b3b5 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -160,6 +160,10 @@ steps:
       - chmod 600 /opt/libredecision/.env
       - cp docker/docker-compose.yml /opt/libredecision/docker-compose.yml
       # Arreter avant le challenge ACME : libere le webroot pour sonic-acme-1
+      # L'org forge a ete renommee (EHV -> LPK) : le nom de projet compose a change,
+      # on arrete donc aussi l'ancienne stack (ehv-decision-main-*) pour eviter la
+      # double inscription fabio et le trafic partage v1/v2.
+      - docker ps -q --filter "name=decision-main" | xargs -r docker stop
       - cd /opt/libredecision && docker compose stop
       - |
         DOMAIN=$(grep '^APP_DOMAIN=' /opt/libredecision/.env | cut -d= -f2)
@@ -170,13 +174,18 @@ steps:
           --webroot /usr/share/nginx/html \
           --server letsencrypt \
           --accountemail support+acme@asycn.io || ACME_EXIT=$?
-        if [ "$ACME_EXIT" -ne 0 ] && [ "$ACME_EXIT" -ne 2 ]; then
-          echo "ERREUR: acme.sh a echoue (exit $ACME_EXIT)"
+        if [ "$ACME_EXIT" -eq 0 ] || [ "$ACME_EXIT" -eq 2 ]; then
+          docker exec sonic-acme-1 cp /etc/acme.sh/$DOMAIN/fullchain.cer /host/certs/$DOMAIN-cert.pem
+          docker exec sonic-acme-1 cp /etc/acme.sh/$DOMAIN/$DOMAIN.key /host/certs/$DOMAIN-key.pem
+          echo "TLS OK (acme exit $ACME_EXIT)"
+        elif docker exec sonic-acme-1 test -f "/host/certs/$DOMAIN-cert.pem"; then
+          echo "AVERTISSEMENT: emission ACME en echec (exit $ACME_EXIT) - certificat existant conserve"
+          echo "  Cause vue le 12/08 : challenge HTTP-01 invalide en IPv6 (AAAA present mais webroot"
+          echo "  non servi en v6) - corriger frontal/DNS avant l'expiration du certificat."
+        else
+          echo "ERREUR: acme.sh a echoue (exit $ACME_EXIT) et aucun certificat existant pour $DOMAIN"
           exit 1
         fi
-        docker exec sonic-acme-1 cp /etc/acme.sh/$DOMAIN/fullchain.cer /host/certs/$DOMAIN-cert.pem
-        docker exec sonic-acme-1 cp /etc/acme.sh/$DOMAIN/$DOMAIN.key /host/certs/$DOMAIN-key.pem
-        echo "TLS OK (acme exit $ACME_EXIT)"
       # Images construites localement dans la pipeline : pas de docker compose pull
       - cd /opt/libredecision && docker compose up -d --remove-orphans
       - cd /opt/libredecision && docker compose ps