fix: harden NetworkManager hotspot creation to prevent supplicant-timeout errors on Pi 3B

scripts/setup.sh

@@ -141,24 +141,27 @@ echo "Configuring Networking..."
 rfkill unblock wlan || true
 
 if command -v nmcli > /dev/null; then
-  echo "NetworkManager detected. Configuring hotspot (WiFi-Safe)..."
+  echo "NetworkManager detected. Configuring stable hotspot..."
-  # Clean up any existing MPVJ connection
+  # Clean up existing profiles
   nmcli con delete MPVJ-AP 2>/dev/null || true
   
-  # Create the Access Point profile (but don't activate it yet)
+  # Ensure wlan0 is not connected to anything else (prevents supplicant-timeout)
+  nmcli device set wlan0 autoconnect no
+  nmcli device disconnect wlan0 2>/dev/null || true
+  
+  # Create the Access Point with specific 2.4GHz settings for Pi 3B stability
   nmcli con add type wifi ifname wlan0 mode ap con-name MPVJ-AP autoconnect yes ssid "$WIFI_SSID"
-  nmcli con modify MPVJ-AP 802-11-wireless.mode ap 802-11-wireless.band bg ipv4.method shared
+  nmcli con modify MPVJ-AP 802-11-wireless.mode ap 802-11-wireless.band bg 
+  nmcli con modify MPVJ-AP ipv4.method shared ipv4.addresses 192.168.4.1/24
   nmcli con modify MPVJ-AP wifi-sec.key-mgmt wpa-psk
   nmcli con modify MPVJ-AP wifi-sec.psk "$WIFI_PASS"
-  nmcli con modify MPVJ-AP ipv4.addresses 192.168.4.1/24
   nmcli con modify MPVJ-AP connection.autoconnect-priority 100
   
-  # Ensure hostapd/dnsmasq are disabled
+  # Ensure legacy services are out of the way
   systemctl stop hostapd dnsmasq 2>/dev/null || true
-  systemctl disable hostapd dnsmasq 2>/dev/null || true
   systemctl mask hostapd dnsmasq 2>/dev/null || true
   
-  echo "NetworkManager Hotspot 'MPVJ-AP' configured."
+  echo "Stable NetworkManager Hotspot configured."
 else
   echo "Using legacy hostapd/dnsmasq logic..."
   # hostapd