diff --git a/src/AppLayer.cpp b/src/AppLayer.cpp
index f185a6c..1065e65 100644
--- a/src/AppLayer.cpp
+++ b/src/AppLayer.cpp
@@ -41,6 +41,7 @@
 // 20240424 Fixes in decodeDownlink()
 //          Fixed getBleAddr()
 //          Implemented resetting of knownBLEAddresses to defaults
+// 20240426 Added BLE address initialization after updating via downlink
 //
 //
 // ToDo:
@@ -141,8 +142,8 @@ AppLayer::decodeDownlink(uint8_t port, uint8_t *payload, size_t size)
                   payload[i + 5]);
         }
 
-        // Note: New addresses will be applied only after restart.
         setBleAddr(payload, size);
+        bleAddrInit();
 
         return 0;
     }
diff --git a/src/AppLayer.h b/src/AppLayer.h
index a61029b..cc378e9 100644
--- a/src/AppLayer.h
+++ b/src/AppLayer.h
@@ -36,6 +36,7 @@
 // 20240417 Added sensor configuration functions
 // 20240419 Modified downlink decoding
 // 20240424 Fixed BLE address initialization from Preferences, added begin()
+// 20240426 Moved bleAddrInit() out of begin()
 //
 // ToDo:
 // -
@@ -140,11 +141,23 @@ class AppLayer
     /*!
      * \brief AppLayer initialization
      *
+     */
+    void begin(void)
+    {
+        bleAddrInit();
+    };
+
+    /*
+     * \brief Initialize list of known BLE addresses from defaults or Preferences
+     *
+     * If available, addresses from Preferences are used, otherwise defaults from
+     * BresserWeatherSensorLWCfg.h.
+     * 
      * BleSensors() requires Preferences, which uses the Flash FS,
      * which is not available before the sketches' begin() is called -
-     * thus the following cannot be handled by the constructor.
+     * thus the following cannot be handled by the constructor!
      */
-    void begin(void)
+    void bleAddrInit(void)
     {
 #if defined(MITHERMOMETER_EN) || defined(THEENGSDECODER_EN)
         knownBLEAddressesDef = KNOWN_BLE_ADDRESSES;
@@ -167,6 +180,7 @@ class AppLayer
 #endif
     };
 
+
     /*!
      * \brief Decode app layer specific downlink messages
      *