diff --git a/scripts/proxmox-vpn-install.sh b/scripts/proxmox-vpn-install.sh
index 598f73a..806ca8a 100644
--- a/scripts/proxmox-vpn-install.sh
+++ b/scripts/proxmox-vpn-install.sh
@@ -377,13 +377,13 @@ start_and_verify() {
 
     # Prüfen ob Image bereits existiert (kein Rebuild nötig)
     local img_exists
-    img_exists=$(pct exec "$SEL_ID" -- bash -c       "docker image inspect gluetun-custom:latest 2>/dev/null | grep -c 'Id' || echo 0" 2>/dev/null || echo "0")
+    img_exists=$(pct exec "$SEL_ID" -- bash -c       "docker image inspect gluetun-custom:latest 2>/dev/null | grep -c 'Id' || echo 0"       2>/dev/null | tr -d '\n\r ' || echo "0")
 
-    if [[ "$img_exists" -gt 0 ]]; then
+    if [[ "${img_exists:-0}" -gt 0 ]] 2>/dev/null; then
       # Prüfen ob der Hostname schon drin ist
       local host_in_img
-      host_in_img=$(pct exec "$SEL_ID" -- bash -c         "docker run --rm --entrypoint sh gluetun-custom:latest          -c 'cat /gluetun/servers.json 2>/dev/null | grep -c ${VPN_HOSTNAME} || echo 0'"         2>/dev/null || echo "0")
-      if [[ "$host_in_img" -gt 0 ]]; then
+      host_in_img=$(pct exec "$SEL_ID" -- bash -c         "docker run --rm --entrypoint sh gluetun-custom:latest          -c 'cat /gluetun/servers.json 2>/dev/null | grep -c ${VPN_HOSTNAME} || echo 0'"         2>/dev/null | tr -d '\n\r ' || echo "0")
+      if [[ "${host_in_img:-0}" -gt 0 ]] 2>/dev/null; then
         success "gluetun-custom:latest bereits vorhanden und enthält ${VPN_HOSTNAME}"
         GLUETUN_IMAGE="gluetun-custom:latest"
         return 0 2>/dev/null || true
@@ -527,8 +527,10 @@ PYEOF"
         error "Abgebrochen."
       fi
 
-      # TLS-Fehler → nächstes Protokoll versuchen
-      if echo "$log_snippet" | grep -q "TLS Error\|TLS key negotiation"; then
+      # TLS-Fehler → sofort auf nächstes Protokoll wechseln
+      if echo "$log_snippet" | grep -qE "TLS Error|TLS key negotiation|TLS handshake failed"; then
+        echo
+        warn "TLS-Fehler erkannt – wechsle Protokoll..."
         tls_error=true; break
       fi