diff --git a/setup-base.sh b/setup-base.sh
index fb04df5..c536084 100755
--- a/setup-base.sh
+++ b/setup-base.sh
@@ -183,6 +183,18 @@ fi
 
 # ── 9. Netzwerk: NetworkManager statt netplan ─────────────────────────────
 echo -e "\n=== 9/11 Netzwerk ==="
+
+# WLAN-Zugangsdaten aus bestehender netplan-Config übernehmen (falls vorhanden)
+WLAN_SSID=""
+WLAN_PASS=""
+for npfile in /etc/netplan/*.yaml; do
+    if [[ -f "$npfile" ]] && grep -q "wifis:" "$npfile" 2>/dev/null; then
+        WLAN_SSID=$(grep -A5 'wifis:' "$npfile" | grep -oP '"\K[^"]+' | head -1)
+        WLAN_PASS=$(grep -oP 'password:\s*"\K[^"]+' "$npfile" | head -1)
+        [[ -n "$WLAN_SSID" ]] && ok "WLAN-Config gefunden: $WLAN_SSID"
+    fi
+done
+
 cat > /etc/netplan/01-network-manager.yaml <<NMEOF
 network:
   version: 2
@@ -228,6 +240,12 @@ if [[ "$(stat -c %d:%i /)" == "$(stat -c %d:%i /proc/1/root/.)" ]] 2>/dev/null;
     sensors-detect --auto 2>/dev/null || true
 fi
 
+# WLAN-Verbindung in NetworkManager einrichten (aus gesicherter netplan-Config)
+if [[ -n "$WLAN_SSID" && -n "$WLAN_PASS" ]]; then
+    nmcli device wifi connect "$WLAN_SSID" password "$WLAN_PASS" 2>/dev/null || true
+    ok "WLAN wiederhergestellt: $WLAN_SSID"
+fi
+
 # zsh als Standard-Shell
 chsh -s /bin/zsh rene 2>/dev/null || true