帖子: RE: 新问题Zstack HA 1.22：我们的Enddevice产品在实际使用中发现设备会出现掉网的现象，掉网后一定的情况下会失去密钥甚至是恢复到出厂时的网络状态。

这个问题 我也遇到过。

我的做法是：

ZDApp_ProcessNetworkJoin()函数中  这段红色的代码 屏蔽

     else if(devStartMode == MODE_REJOIN)
      {
        if ( ZSTACK_END_DEVICE_BUILD )
        {
          devStartMode = MODE_REJOIN;
          _tmpRejoinState = true;
          _NIB.nwkState = NWK_INIT;

          if( prevDevState == DEV_NWK_SEC_REJOIN_CURR_CHANNEL )
          {
            runtimeChannel = MAX_CHANNELS_24GHZ;
            prevDevState = DEV_NWK_SEC_REJOIN_ALL_CHANNEL ;
          }
          else if ( prevDevState == DEV_NWK_SEC_REJOIN_ALL_CHANNEL)
          {
            // Set the flag that will ask the device to do trust center network layer rejoin.
            //_NIB.nwkKeyLoaded = FALSE;
            //ZDApp_ResetNwkKey(); // Clear up the old network key.
          #ifdef DEBUG_REJOIN
            HalUARTWrite(0,"Don't clearing network key\n", sizeof("Don't clearing network key\n"));
          #endif            
            runtimeChannel = (uint32) (1L << _NIB.nwkLogicalChannel);
            prevDevState = DEV_NWK_TC_REJOIN_CURR_CHANNEL ;
          }

应该就可以了