diff --git a/docs/api/examples/post_vpcs.txt b/docs/api/examples/post_vpcs.txt
index 9b6ffd02..4fdc51cd 100644
--- a/docs/api/examples/post_vpcs.txt
+++ b/docs/api/examples/post_vpcs.txt
@@ -20,5 +20,5 @@ X-ROUTE: /vpcs
     "name": "PC TEST 1",
     "project_uuid": "a1e920ca-338a-4e9f-b363-aa607b09dd80",
     "script_file": null,
-    "uuid": "aa017896-574d-4a10-bcad-d3001ea98f8b"
+    "uuid": "f598eb3a-67b2-43ab-af37-3c9b1f643cdd"
 }
diff --git a/gns3server/handlers/vpcs_handler.py b/gns3server/handlers/vpcs_handler.py
index 2978e0de..54d32af2 100644
--- a/gns3server/handlers/vpcs_handler.py
+++ b/gns3server/handlers/vpcs_handler.py
@@ -44,6 +44,7 @@ class VPCSHandler:
         vm = yield from vpcs.create_vm(request.json["name"],
                                        request.json["project_uuid"],
                                        uuid=request.json.get("uuid"),
+                                       console=request.json.get("console"),
                                        script_file=request.json.get("script_file"))
         response.json(vm)
 
diff --git a/gns3server/modules/port_manager.py b/gns3server/modules/port_manager.py
index 26b2c990..6ffc3309 100644
--- a/gns3server/modules/port_manager.py
+++ b/gns3server/modules/port_manager.py
@@ -157,6 +157,7 @@ class PortManager:
         Get an available TCP console port and reserve it
         """
 
+        print("FREE")
         port = self.find_unused_port(self._console_port_range[0],
                                      self._console_port_range[1],
                                      host=self._console_host,
@@ -176,6 +177,7 @@ class PortManager:
         if port in self._used_tcp_ports:
             raise HTTPConflict(reason="TCP port already {} in use on host".format(port, self._console_host))
         self._used_tcp_ports.add(port)
+        return port
 
     def release_console_port(self, port):
         """
diff --git a/gns3server/modules/vpcs/vpcs_vm.py b/gns3server/modules/vpcs/vpcs_vm.py
index 66cba55e..02a20a9b 100644
--- a/gns3server/modules/vpcs/vpcs_vm.py
+++ b/gns3server/modules/vpcs/vpcs_vm.py
@@ -72,13 +72,10 @@ class VPCSVM(BaseVM):
         self._script_file = script_file
         self._ethernet_adapter = EthernetAdapter()  # one adapter with 1 Ethernet interface
 
-        try:
-            if not self._console:
-                self._console = self._manager.port_manager.get_free_console_port()
-            else:
-                self._console = self._manager.port_manager.reserve_console_port(self._console)
-        except Exception as e:
-            raise VPCSError(e)
+        if self._console is not None:
+            self._console = self._manager.port_manager.reserve_console_port(self._console)
+        else:
+            self._console = self._manager.port_manager.get_free_console_port()
 
         self._check_requirements()
 
@@ -106,9 +103,9 @@ class VPCSVM(BaseVM):
 
     def __json__(self):
 
-        return {"name": self.name,
-                "uuid": self.uuid,
-                "console": self.console,
+        return {"name": self._name,
+                "uuid": self._uuid,
+                "console": self._console,
                 "project_uuid": self.project.uuid,
                 "script_file": self.script_file}
 
diff --git a/gns3server/schemas/vpcs.py b/gns3server/schemas/vpcs.py
index ed738eb4..ea54ee0c 100644
--- a/gns3server/schemas/vpcs.py
+++ b/gns3server/schemas/vpcs.py
@@ -48,7 +48,7 @@ VPCS_CREATE_SCHEMA = {
             "description": "console TCP port",
             "minimum": 1,
             "maximum": 65535,
-            "type": "integer"
+            "type": ["integer", "null"]
         },
         "script_file": {
             "description": "VPCS startup script",
diff --git a/gns3server/web/response.py b/gns3server/web/response.py
index 2a0b3911..04d0846a 100644
--- a/gns3server/web/response.py
+++ b/gns3server/web/response.py
@@ -49,6 +49,8 @@ class Response(aiohttp.web.Response):
             try:
                 jsonschema.validate(answer, self._output_schema)
             except jsonschema.ValidationError as e:
-                log.error("Invalid output schema")
+                log.error("Invalid output schema {} '{}' in schema: {}".format(e.validator,
+                                                                               e.validator_value,
+                                                                               json.dumps(e.schema)))
                 raise aiohttp.web.HTTPBadRequest(text="{}".format(e))
         self.body = json.dumps(answer, indent=4, sort_keys=True).encode('utf-8')
diff --git a/gns3server/web/route.py b/gns3server/web/route.py
index 4cc6a863..cd1ece5d 100644
--- a/gns3server/web/route.py
+++ b/gns3server/web/route.py
@@ -40,7 +40,9 @@ def parse_request(request, input_schema):
     try:
         jsonschema.validate(request.json, input_schema)
     except jsonschema.ValidationError as e:
-        log.error("Invalid input schema")
+        log.error("Invalid input schema {} '{}' in schema: {}".format(e.validator,
+                                                                      e.validator_value,
+                                                                      json.dumps(e.schema)))
         raise aiohttp.web.HTTPBadRequest(text="Request is not {} '{}' in schema: {}".format(
             e.validator,
             e.validator_value,
diff --git a/tests/api/test_vpcs.py b/tests/api/test_vpcs.py
index 0f56e1a1..3f9ff2f7 100644
--- a/tests/api/test_vpcs.py
+++ b/tests/api/test_vpcs.py
@@ -47,6 +47,15 @@ def test_vpcs_create_script_file(server, project):
     assert response.json["script_file"] == "/tmp/test"
 
 
+def test_vpcs_create_port(server, project):
+    response = server.post("/vpcs", {"name": "PC TEST 1", "project_uuid": project.uuid, "console": 4242})
+    assert response.status == 200
+    assert response.route == "/vpcs"
+    assert response.json["name"] == "PC TEST 1"
+    assert response.json["project_uuid"] == project.uuid
+    assert response.json["console"] == 4242
+
+
 def test_vpcs_nio_create_udp(server, vm):
     response = server.post("/vpcs/{}/ports/0/nio".format(vm["uuid"]), {"type": "nio_udp",
                                                                        "lport": 4242,