diff --git a/src/octoprint/util/comm_acc.py b/src/octoprint/util/comm_acc.py
index a437d86b..dcad2339 100644
--- a/src/octoprint/util/comm_acc.py
+++ b/src/octoprint/util/comm_acc.py
@@ -958,6 +958,7 @@ class MachineCom(object):
 		# enqueue an M105 first thing
 		if try_hello:
 			self._sendCommand("?")
+			self._clear_to_send.set()
 
 		while self._monitoring_active:
 			try:
@@ -1311,6 +1312,7 @@ class MachineCom(object):
 						if not self._long_running_command:
 							self._log("Communication timeout during printing, forcing a line")
 							self._sendCommand("?")
+							self._clear_to_send.set()
 						else:
 							self._logger.debug("Ran into a communication timeout, but a command known to be a long runner is currently active")
 
@@ -1736,7 +1738,6 @@ class MachineCom(object):
 					return
 				else:
 					self._log("--- True")
-					self._clear_to_send.set()
 					self._status_report_queued = True
 			self._send_queue.put((command, linenumber, command_type))
 		except TypeAlreadyInQueue as e: