diff --git a/operator_setup.sh b/operator_setup.sh
index bc9f07c..c94ee34 100755
--- a/operator_setup.sh
+++ b/operator_setup.sh
@@ -529,6 +529,11 @@ EOF
     # Both would fight over wlan0, causing WiFi instability and SSH drops
     rm -f "${MOUNT_POINT}/etc/systemd/system/multi-user.target.wants/wpa_supplicant.service"
 
+    # Enable the per-interface instance — this is what actually drives wlan0
+    mkdir -p "${MOUNT_POINT}/etc/systemd/system/multi-user.target.wants"
+    ln -sf /lib/systemd/system/wpa_supplicant@.service \
+        "${MOUNT_POINT}/etc/systemd/system/multi-user.target.wants/wpa_supplicant@wlan0.service"
+
     # Disable WiFi power saving — aw859a driver drops under load with power save on
     mkdir -p "${MOUNT_POINT}/etc/udev/rules.d"
     cat > "${MOUNT_POINT}/etc/udev/rules.d/70-wifi-pm.rules" << 'EOF'