diff --git a/commonLibs/livoxProto1/device.cpp b/commonLibs/livoxProto1/device.cpp
index 18f603b..f212d63 100644
--- a/commonLibs/livoxProto1/device.cpp
+++ b/commonLibs/livoxProto1/device.cpp
@@ -125,7 +125,6 @@ class Device::ConnectReq
 {
 private:
 	Device& device;
-	std::unique_ptr<boost::asio::deadline_timer> retryTimer;
 
 public:
 	ConnectReq(Device& dev, smo::Callback<Device::connectReqCbFn> cb)
@@ -179,63 +178,6 @@ public:
 			context->device.heartbeatFd = fd;
 			context->device.startHeartbeat();
 			context->callOriginalCb(true);
-		return;
-	}
-
-		// Start retry timer
-		if (OptionParser::getOptions().verbose)
-		{
-			std::cout << __func__ << ": Starting retry delay ("
-				<< context->device.retryDelayMs << "ms), then trying known "
-				<< "device again" << "\n";
-		}
-
-		context->retryTimer = std::make_unique<boost::asio::deadline_timer>(
-			context->device.componentThread->getIoService());
-
-		context->retryTimer->expires_from_now(
-			boost::posix_time::milliseconds(context->device.retryDelayMs));
-
-		context->retryTimer->async_wait(
-			std::bind(
-				&ConnectReq::connectReq3, context.get(), context,
-				std::placeholders::_1));
-	}
-
-	void connectReq3(
-		std::shared_ptr<ConnectReq> context,
-		const boost::system::error_code& error
-		)
-	{
-		if (error)
-		{
-			context->callOriginalCb(false);
-			return;
-		}
-
-		if (OptionParser::getOptions().verbose)
-		{
-			std::cout << __func__ << ": Trying to connect to known device "
-				<< "again" << "\n";
-		}
-
-		context->device.connectToKnownDeviceReq(
-			{context, std::bind(&ConnectReq::connectReq4, context.get(), context,
-			std::placeholders::_1, std::placeholders::_2,
-			std::placeholders::_3)});
-	}
-
-	void connectReq4(
-		std::shared_ptr<ConnectReq> context,
-		bool success, const std::string& ipAddr, int fd
-		)
-	{
-		if (success)
-		{
-			context->device.discoveredDevice.ipAddr = ipAddr;
-			context->device.heartbeatFd = fd;
-			context->device.startHeartbeat();
-			context->callOriginalCb(true);
 			return;
 		}