diff --git a/src/load_generator/load_gen/RequestGenerator.py b/src/load_generator/load_gen/RequestGenerator.py
index 974ce6f130e9c81f273f418b0a1440d148fcfb74..fdd400a2110fd4a75d6f9e8cc4820bc943eef423 100644
--- a/src/load_generator/load_gen/RequestGenerator.py
+++ b/src/load_generator/load_gen/RequestGenerator.py
@@ -39,14 +39,6 @@ ROUTER_ID = {
     'R149': '5.5.5.5',
     'R155': '5.5.5.1',
     'R199': '5.5.5.6',
-
-}
-
-VIRTUAL_CIRCUIT = {
-    'R149': '5.5.5.5',
-    'R155': '5.5.5.1',
-    'R199': '5.5.5.6',
-
 }
 
 class RequestGenerator:
@@ -269,8 +261,8 @@ class RequestGenerator:
 
             src_device_name = self._device_data[src_device_uuid]['name']
             src_endpoint_name = self._device_endpoint_data[src_device_uuid][src_endpoint_uuid]['name']
-            src_router_id = ROUTER_ID.get(src_device_name)
             src_router_num = int(re.findall(r'^\D*(\d+)', src_device_name)[0])
+            src_router_id = ROUTER_ID.get(src_device_name)
             if src_router_id is None: src_router_id = '10.0.0.{:d}'.format(src_router_num)
 
             dst_device_name = self._device_data[dst_device_uuid]['name']
@@ -322,8 +314,8 @@ class RequestGenerator:
 
             src_device_name = self._device_data[src_device_uuid]['name']
             src_endpoint_name = self._device_endpoint_data[src_device_uuid][src_endpoint_uuid]['name']
-            src_router_id = ROUTER_ID.get(src_device_name)
             src_router_num = int(re.findall(r'^\D*(\d+)', src_device_name)[0])
+            src_router_id = ROUTER_ID.get(src_device_name)
             if src_router_id is None: src_router_id = '10.0.0.{:d}'.format(src_router_num)
             src_address_ip = '10.{:d}.{:d}.{:d}'.format(x, y, src_router_num)
 
diff --git a/src/pathcomp/frontend/service/algorithms/tools/ResourceGroups.py b/src/pathcomp/frontend/service/algorithms/tools/ResourceGroups.py
index 53c89cd124cb7d3431b37a50596b0b793cfa83eb..e56d436dd006197497d7774be598a480a134320c 100644
--- a/src/pathcomp/frontend/service/algorithms/tools/ResourceGroups.py
+++ b/src/pathcomp/frontend/service/algorithms/tools/ResourceGroups.py
@@ -33,12 +33,12 @@ DEVICE_TYPE_TO_DEEPNESS = {
     DeviceTypeEnum.EMULATED_P4_SWITCH.value              : 60,
     DeviceTypeEnum.P4_SWITCH.value                       : 60,
 
-    DeviceTypeEnum.EMULATED_MICROWAVE_RADIO_SYSTEM.value : 40,
-    DeviceTypeEnum.MICROWAVE_RADIO_SYSTEM.value          : 40,
-
     DeviceTypeEnum.EMULATED_XR_CONSTELLATION.value       : 40,
     DeviceTypeEnum.XR_CONSTELLATION.value                : 40,
 
+    DeviceTypeEnum.EMULATED_MICROWAVE_RADIO_SYSTEM.value : 30,
+    DeviceTypeEnum.MICROWAVE_RADIO_SYSTEM.value          : 30,
+
     DeviceTypeEnum.EMULATED_OPEN_LINE_SYSTEM.value       : 30,
     DeviceTypeEnum.OPEN_LINE_SYSTEM.value                : 30,
 
diff --git a/src/service/service/task_scheduler/TaskExecutor.py b/src/service/service/task_scheduler/TaskExecutor.py
index 96751e83770e1b98df4770cf74bb453f6a0519ef..acda45ce80a62a4a3723744546968e3195799b59 100644
--- a/src/service/service/task_scheduler/TaskExecutor.py
+++ b/src/service/service/task_scheduler/TaskExecutor.py
@@ -12,23 +12,28 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import json
+import json, logging
 from enum import Enum
 from typing import TYPE_CHECKING, Any, Dict, Optional, Union
 from common.method_wrappers.ServiceExceptions import NotFoundException
-from common.proto.context_pb2 import Connection, ConnectionId, Device, DeviceId, Service, ServiceId
+from common.proto.context_pb2 import Connection, ConnectionId, Device, DeviceDriverEnum, DeviceId, Service, ServiceId
 from common.tools.context_queries.Connection import get_connection_by_id
 from common.tools.context_queries.Device import get_device
 from common.tools.context_queries.Service import get_service_by_id
+from common.tools.grpc.Tools import grpc_message_list_to_json_string
 from common.tools.object_factory.Device import json_device_id
 from context.client.ContextClient import ContextClient
 from device.client.DeviceClient import DeviceClient
+from service.service.service_handler_api.Exceptions import (
+    UnsatisfiedFilterException, UnsupportedFilterFieldException, UnsupportedFilterFieldValueException)
 from service.service.service_handler_api.ServiceHandlerFactory import ServiceHandlerFactory, get_service_handler_class
 from service.service.tools.ObjectKeys import get_connection_key, get_device_key, get_service_key
 
 if TYPE_CHECKING:
     from service.service.service_handler_api._ServiceHandler import _ServiceHandler
 
+LOGGER = logging.getLogger(__name__)
+
 CacheableObject = Union[Connection, Device, Service]
 
 class CacheableObjectType(Enum):
@@ -169,5 +174,21 @@ class TaskExecutor:
         self, connection : Connection, service : Service, **service_handler_settings
     ) -> '_ServiceHandler':
         connection_devices = self.get_devices_from_connection(connection, exclude_managed_by_controller=True)
-        service_handler_class = get_service_handler_class(self._service_handler_factory, service, connection_devices)
-        return service_handler_class(service, self, **service_handler_settings)
+        try:
+            service_handler_class = get_service_handler_class(
+                self._service_handler_factory, service, connection_devices)
+            return service_handler_class(service, self, **service_handler_settings)
+        except (UnsatisfiedFilterException, UnsupportedFilterFieldException, UnsupportedFilterFieldValueException):
+            dict_connection_devices = {
+                cd_data.name : (cd_uuid, cd_data.name, {
+                    (device_driver, DeviceDriverEnum.Name(device_driver))
+                    for device_driver in cd_data.device_drivers
+                })
+                for cd_uuid,cd_data in connection_devices.items()
+            }
+            LOGGER.exception(
+                'Unable to select service handler. service={:s} connection={:s} connection_devices={:s}'.format(
+                    grpc_message_list_to_json_string(service), grpc_message_list_to_json_string(connection),
+                    str(dict_connection_devices)
+                )
+            )