diff --git a/gns3server/handlers/dynamips_vm_handler.py b/gns3server/handlers/dynamips_vm_handler.py
index 4b284a0c..bd3c4d4c 100644
--- a/gns3server/handlers/dynamips_vm_handler.py
+++ b/gns3server/handlers/dynamips_vm_handler.py
@@ -349,3 +349,24 @@ class DynamipsVMHandler:
         response.set_status(200)
         response.json({"startup_config_content": startup_config_content,
                        "private_config_content": private_config_content})
+
+    @Route.get(
+        r"/projects/{project_id}/dynamips/vms/{vm_id}/idlepc_proposals",
+        status_codes={
+            200: "Idle-PCs retrieved",
+            400: "Invalid request",
+            404: "Instance doesn't exist"
+        },
+        description="Retrieve the idlepc proposals")
+    def get_idlepcs(request, response):
+
+        dynamips_manager = Dynamips.instance()
+        vm = dynamips_manager.get_vm(request.match_info["vm_id"],
+                                     project_id=request.match_info["project_id"])
+
+        yield from vm.set_idlepc("0x0")
+        idlepcs = yield from vm.get_idle_pc_prop()
+
+        #idlepcs = yield from vm.show_idle_pc_prop()
+        response.set_status(200)
+        response.json({"idlepcs": idlepcs})
diff --git a/gns3server/modules/dynamips/__init__.py b/gns3server/modules/dynamips/__init__.py
index fc0eb7d8..c03ada14 100644
--- a/gns3server/modules/dynamips/__init__.py
+++ b/gns3server/modules/dynamips/__init__.py
@@ -409,6 +409,10 @@ class Dynamips(BaseManager):
         if not vm.mmap:
             raise DynamipsError("mmap support is required to enable ghost IOS support")
 
+        if vm.platform == "c7200" and vm.npe == "npe-g2":
+            log.warning("Ghost IOS is not support for c7200 with NPE-G2")
+            return
+
         ghost_file = vm.formatted_ghost_file()
         ghost_file_path = os.path.join(vm.hypervisor.working_dir, ghost_file)
         if ghost_file_path not in self._ghost_files:
@@ -418,9 +422,6 @@ class Dynamips(BaseManager):
             try:
                 yield from ghost.create()
                 yield from ghost.set_image(vm.image)
-                # for 7200s, the NPE must be set when using an NPE-G2.
-                if vm.platform == "c7200":
-                    yield from ghost.set_npe(vm.npe)
                 yield from ghost.set_ghost_status(1)
                 yield from ghost.set_ghost_file(ghost_file)
                 yield from ghost.set_ram(vm.ram)
@@ -463,7 +464,8 @@ class Dynamips(BaseManager):
                 adapter = ADAPTER_MATRIX[adapter_name]()
                 if vm.slots[slot_id] and type(vm.slots[slot_id]) != type(adapter):
                     yield from vm.slot_remove_binding(slot_id)
-                yield from vm.slot_add_binding(slot_id, adapter)
+                if type(vm.slots[slot_id]) != type(adapter):
+                    yield from vm.slot_add_binding(slot_id, adapter)
             elif name.startswith("slot") and value is None:
                 slot_id = int(name[-1])
                 if vm.slots[slot_id]:
@@ -474,7 +476,8 @@ class Dynamips(BaseManager):
                 wic = WIC_MATRIX[wic_name]()
                 if vm.slots[0].wics[wic_slot_id] and type(vm.slots[0].wics[wic_slot_id]) != type(wic):
                     yield from vm.uninstall_wic(wic_slot_id)
-                yield from vm.install_wic(wic_slot_id, wic)
+                if type(vm.slots[0].wics[wic_slot_id]) != type(wic):
+                    yield from vm.install_wic(wic_slot_id, wic)
             elif name.startswith("wic") and value is None:
                 wic_slot_id = int(name[-1])
                 if vm.slots[0].wics and vm.slots[0].wics[wic_slot_id]:
diff --git a/gns3server/modules/dynamips/nodes/router.py b/gns3server/modules/dynamips/nodes/router.py
index 36db166d..92f14c02 100644
--- a/gns3server/modules/dynamips/nodes/router.py
+++ b/gns3server/modules/dynamips/nodes/router.py
@@ -305,6 +305,9 @@ class Router(BaseVM):
             # router is already closed
             return
 
+        if self._dynamips_id in self._dynamips_ids[self._project.id]:
+            self._dynamips_ids[self._project.id].remove(self._dynamips_id)
+
         self._hypervisor.devices.remove(self)
         if self._hypervisor and not self._hypervisor.devices:
             try:
@@ -323,9 +326,6 @@ class Router(BaseVM):
             self._manager.port_manager.release_console_port(self._aux)
             self._aux = None
 
-        if self._dynamips_id in self._dynamips_ids[self._project.id]:
-            self._dynamips_ids[self._project.id].remove(self._dynamips_id)
-
         self._closed = True
 
     @property