Index: dialin/hd/hemodialysis_device.py
===================================================================
diff -u -r363867c876456821000c189f86fbb55b4d583c50 -r4e09b977d0165c359f66307e45db83b0a7e8e9c9
--- dialin/hd/hemodialysis_device.py	(.../hemodialysis_device.py)	(revision 363867c876456821000c189f86fbb55b4d583c50)
+++ dialin/hd/hemodialysis_device.py	(.../hemodialysis_device.py)	(revision 4e09b977d0165c359f66307e45db83b0a7e8e9c9)
@@ -204,7 +204,7 @@
         self.logger.debug("Logging in...")
 
         # Send message
-        received_message = self.can_interface.send(message)
+        received_message = self.can_interface.send(message, resend=True)
 
         if received_message is not None:
             if received_message['message'][DenaliMessage.PAYLOAD_START_INDEX] == 1:
Index: dialin/protocols/CAN.py
===================================================================
diff -u -r3338499f8613c3e0156b21c5535109c464cc5438 -r4e09b977d0165c359f66307e45db83b0a7e8e9c9
--- dialin/protocols/CAN.py	(.../CAN.py)	(revision 3338499f8613c3e0156b21c5535109c464cc5438)
+++ dialin/protocols/CAN.py	(.../CAN.py)	(revision 4e09b977d0165c359f66307e45db83b0a7e8e9c9)
@@ -511,14 +511,14 @@
         else:
             self.sync_response_dictionary[channel_id] = {message_id: function}
 
-    def send(self, built_message, time_out=DIALIN_MSG_RESP_TO):
+    def send(self, built_message: dict, time_out: float = DIALIN_MSG_RESP_TO, resend: bool = False):
         """
-        sends can_packet to channel_id.
+        Sends a denali message
 
-        @param built_message: message built using DialinMessage class
-        @param time_out: time it will wait for a response in seconds
-
-        @return:: Diality Packet, it it times out it returns None
+        @param built_message: (dict) message built using DialinMessage class
+        @param time_out: (float) time it will wait for a response in seconds
+        @param resend: (bool) Allow resending the message when no response is received. Disabled by default
+        @return: (dict) The denali packet. If a timeout occurs returns None
         """
 
         msg_sent = False
@@ -555,20 +555,20 @@
             # Sending
             self.command_response_message = None
 
-            # After all message has been sent, we clear a flag
+            # After all messages have been sent, we clear a flag
             self.send_event.clear()
 
-            # At this point, we sleep until the system times out or flag is set
+            # Block until the timeout completes or until the threading event's flag is set in self.listener,
+            # indicating a response has been received
             self.send_event.wait(time_out)
 
-            if self.command_response_message is not None:
-                msg_sent = True
-            elif time_out == 0:
-                msg_sent = True
-            else:
-                # msg_sent = False
-                self.logger.debug("No response.  Re-sending message.")
+            msg_sent = True
 
+            # only resend the message if resend is enabled and we haven't received a response yet
+            if resend and self.command_response_message is None:
+                msg_sent = False
+                self.logger.debug("No response. Re-sending message.")
+
             # We are ready to send again.  Reset request ID appropriately
             self.send_packet_request_id = -1
 
Index: tests/test_hd_reset.py
===================================================================
diff -u -r2547391a5b9dd00230b8238dba5d0ae6caf2e4c6 -r4e09b977d0165c359f66307e45db83b0a7e8e9c9
--- tests/test_hd_reset.py	(.../test_hd_reset.py)	(revision 2547391a5b9dd00230b8238dba5d0ae6caf2e4c6)
+++ tests/test_hd_reset.py	(.../test_hd_reset.py)	(revision 4e09b977d0165c359f66307e45db83b0a7e8e9c9)
@@ -23,7 +23,7 @@
 
     @return: None
     """
-    hd = HD(log_level="CAN_ONLY")
+    hd = HD(log_level="DEBUG")
     hd.cmd_log_in_to_hd()
     hd.cmd_hd_software_reset_request()