diff --git a/src/drivers/MarlinDriver.cpp b/src/drivers/MarlinDriver.cpp
index e59e292..df7410b 100644
--- a/src/drivers/MarlinDriver.cpp
+++ b/src/drivers/MarlinDriver.cpp
@@ -22,7 +22,7 @@ MarlinDriver::MarlinDriver(Server& server, const std::string& serialPortPath, co
   checkTemperatureInterval_(2000),
   checkConnection_(true),
   checkTemperatureAttempt_(0),
-  maxCheckTemperatureAttempts_(2) {
+  maxCheckTemperatureAttempts_(45) {
 
 	/*//temperature parsing tests
 	readCode(*new string("T:19.1 /0.0 B:0.0 /0.0 @:0 B@:0"));
diff --git a/src/drivers/Serial.cpp b/src/drivers/Serial.cpp
index 35b71b1..f861fbc 100644
--- a/src/drivers/Serial.cpp
+++ b/src/drivers/Serial.cpp
@@ -141,14 +141,6 @@ Serial::SET_SPEED_RESULT Serial::setSpeed(int speed) {
 	if (ioctl(portFd_, TCSETS2, &options) < 0) return SSR_IO_SET;
 #endif
 
-	//toggle DTR
-	if (ioctl(portFd_, TIOCMGET, &modemBits) < 0) return SSR_IO_MGET;
-	modemBits |= TIOCM_DTR;
-	if (ioctl(portFd_, TIOCMSET, &modemBits) < 0) return SSR_IO_MSET1;
-	usleep(100 * 1000);
-	modemBits &=~TIOCM_DTR;
-	if (ioctl(portFd_, TIOCMSET, &modemBits) < 0) return SSR_IO_MSET2;
-
 	return SSR_OK;
 }