diff --git a/src/knx/config.h b/src/knx/config.h
index 2c09a56..95e906c 100644
--- a/src/knx/config.h
+++ b/src/knx/config.h
@@ -11,8 +11,8 @@
 #endif
 
 
-#define USE_RF
-#define USE_TP
+//#define USE_RF
+//#define USE_TP
 #define USE_IP
 //#define USE_USB
 //#define USE_CEMI_SERVER
diff --git a/src/knx/device_object.cpp b/src/knx/device_object.cpp
index 1f23b49..888fabd 100644
--- a/src/knx/device_object.cpp
+++ b/src/knx/device_object.cpp
@@ -214,7 +214,7 @@ void DeviceObject::hardwareType(const uint8_t* value)
 
 uint16_t DeviceObject::version()
 {
-    Property* prop = property(PID_HARDWARE_TYPE);
+    Property* prop = property(PID_VERSION);
     uint16_t value;
     prop->read(value);
     return value;
@@ -222,7 +222,7 @@ uint16_t DeviceObject::version()
 
 void DeviceObject::version(uint16_t value)
 {
-    Property* prop = property(PID_HARDWARE_TYPE);
+    Property* prop = property(PID_VERSION);
     prop->write(value);
 }
 
diff --git a/src/knx/memory.cpp b/src/knx/memory.cpp
index 918da03..0611b29 100644
--- a/src/knx/memory.cpp
+++ b/src/knx/memory.cpp
@@ -9,12 +9,15 @@ Memory::Memory(Platform& platform, DeviceObject& deviceObject)
 
 void Memory::readMemory()
 {
+    println("readMemory");
     if (_data != nullptr)
         return;
 
     uint16_t flashSize = 512;
     _data = _platform.getEepromBuffer(flashSize);
 
+    printHex("RESTORED ", _data, _metadataSize);
+
     uint16_t metadataBlockSize = alignToPageSize(_metadataSize);
 
     _freeList = new MemoryBlock(_data + metadataBlockSize, flashSize - metadataBlockSize);
@@ -28,21 +31,44 @@ void Memory::readMemory()
     uint16_t version = 0;
     buffer = popWord(version, buffer);
     
+    
+    
     if (_deviceObject.manufacturerId() != manufacturerId
        || _deviceObject.version() != version
        || memcmp(_deviceObject.hardwareType(), hardwareType, LEN_HARDWARE_TYPE) != 0)
     {
         println("saved memory doesn't match manufacturerId, version or hardwaretype");
+        print("manufacturerId: ");
+        print(manufacturerId, HEX);
+        print(" ");
+        println(_deviceObject.manufacturerId(), HEX);
+        print("version: ");
+        print(version, HEX);
+        print(" ");
+        println(_deviceObject.version(), HEX);
+        print("hardwareType: ");
+        printHex("", hardwareType, LEN_HARDWARE_TYPE);
+        print(" ");
+        printHex("", _deviceObject.hardwareType(), LEN_HARDWARE_TYPE);
         return;
     }
 
+    println("manufacturerId, version and hardwareType matches");
+    print("saverestores ");
+    println(_saveCount);
     for (int i = 0; i < _saveCount; i++)
     {
+        println(_data - buffer);
+        println(".");
         buffer = _saveRestores[i]->restore(buffer);
     }
-
+    println("restored saveRestores");
+    print("tableObjs ");
+    println(_tableObjCount);
     for (int i = 0; i < _tableObjCount; i++)
     {
+        println(_data - buffer);
+        println(".");
         buffer = _tableObjects[i]->restore(buffer);
         uint16_t memorySize = 0;
         buffer = popWord(memorySize, buffer);
@@ -53,6 +79,7 @@ void Memory::readMemory()
         // this works because TableObject saves a relative addr and restores it itself
         addNewUsedBlock(_tableObjects[i]->_data, memorySize);
     }
+    println("restored Tableobjects");
 }
 
 void Memory::writeMemory()
@@ -62,13 +89,23 @@ void Memory::writeMemory()
     buffer = pushByteArray(_deviceObject.hardwareType(), LEN_HARDWARE_TYPE, buffer);
     buffer = pushWord(_deviceObject.version(), buffer);
 
+    print("save saveRestores ");
+    println(_saveCount);
     for (int i = 0; i < _saveCount; i++)
     {
+        println(_data - buffer);
+        println(".");
+        println((int)_saveRestores[i], HEX);
         buffer = _saveRestores[i]->save(buffer);
     }
 
+    print("save tableobjs ");
+    println(_tableObjCount);
     for (int i = 0; i < _tableObjCount; i++)
     {
+        println(_data - buffer);
+        println(".");
+        println((int)_tableObjects[i], HEX);
         buffer = _tableObjects[i]->save(buffer);
 
         //save to size of the memoryblock for tableobject too, so that we can rebuild the usedList and freeList
@@ -84,10 +121,11 @@ void Memory::writeMemory()
             buffer = pushWord(block->size, buffer);
         }
         else
-            pushWord(0, buffer);
+            buffer = pushWord(0, buffer);
     }
     
     _platform.commitToEeprom();
+    printHex("SAVED ", _data, _metadataSize);
 }
 
 void Memory::addSaveRestore(SaveRestore* obj)
diff --git a/visualstudio/knx-demo.vgdbproj b/visualstudio/knx-demo.vgdbproj
index 8430762..a795579 100644
--- a/visualstudio/knx-demo.vgdbproj
+++ b/visualstudio/knx-demo.vgdbproj
@@ -224,6 +224,7 @@
       </DebugSettingsOverride>
       <BuildSettingsExtension xsi:type="com.visualgdb.build.external.arduino.extension">
         <BoardID>esp8266:esp8266:nodemcuv2</BoardID>
+        <COMPort>COM5</COMPort>
         <Properties>
           <Entries>
             <KeyValue>