Re-connect without proper disconnect fails on Windows

ecr.py

@@ -392,7 +392,6 @@ class ECR(object):
         # note: this only executes utils.detect_pt with the local ecrterm.
         from ecrterm.utils import detect_pt
         result = detect_pt(silent=False, ecr=self, timeout=2)
-        self.transport.connect()
         return result
 
     def parse_str(self, s):

utils.py

@@ -49,13 +49,19 @@ def detect_pt(device='/dev/ttyUSB0', timeout=2, silent=True,
     def __detect_pt(port, timeout, ecr):
         e = ecr or ECR(port)
         # reconnect to have lower timeout
+        e.transport.close()
         e.transport.connect(timeout=timeout)
         errors = e.transmit(packets.StatusEnquiry())
-        if not errors:
-            if isinstance(e.last.completion, packets.Completion):
-                return e.last.completion.fixed_values.get('sw-version', True) or True
-            return True
-        return False
+        try:
+            if not errors:
+                if isinstance(e.last.completion, packets.Completion):
+                    return e.last.completion.fixed_values.get('sw-version', True) or True
+                return True
+            return False
+        finally:
+            # Reset timeout
+            e.transport.close()
+            e.transport.connect()
     if silent:
         try:
             return __detect_pt(device, timeout, ecr)