diff --git a/reactos/drivers/serial/serenum/serenum.c b/reactos/drivers/serial/serenum/serenum.c
index cf7d3af0429..2b2fba529bb 100644
--- a/reactos/drivers/serial/serenum/serenum.c
+++ b/reactos/drivers/serial/serenum/serenum.c
@@ -47,6 +47,7 @@ IrpStub(
 			case IRP_MJ_CREATE:
 			case IRP_MJ_CLOSE:
 			case IRP_MJ_CLEANUP:
+			case IRP_MJ_QUERY_INFORMATION:
 			case IRP_MJ_READ:
 			case IRP_MJ_WRITE:
 			case IRP_MJ_DEVICE_CONTROL:
@@ -56,7 +57,7 @@ IrpStub(
 				WARN_(SERENUM, "FDO stub for major function 0x%lx\n",
 					IoGetCurrentIrpStackLocation(Irp)->MajorFunction);
 				ASSERT(FALSE);
-				Status = Irp->IoStatus.Status;
+				return ForwardIrpToLowerDeviceAndForget(DeviceObject, Irp);
 			}
 		}
 	}
@@ -77,7 +78,7 @@ IrpStub(
 				WARN_(SERENUM, "PDO stub for major function 0x%lx\n",
 					IoGetCurrentIrpStackLocation(Irp)->MajorFunction);
 				ASSERT(FALSE);
-				Status = Irp->IoStatus.Status;
+				return ForwardIrpToAttachedFdoAndForget(DeviceObject, Irp);
 			}
 		}
 	}
diff --git a/reactos/drivers/serial/serial/info.c b/reactos/drivers/serial/serial/info.c
index 215bf508dc0..8d894677149 100644
--- a/reactos/drivers/serial/serial/info.c
+++ b/reactos/drivers/serial/serial/info.c
@@ -44,6 +44,7 @@ SerialQueryInformation(
 				StandardInfo->Directory = FALSE;
 				StandardInfo->NumberOfLinks = 0;
 				StandardInfo->DeletePending = FALSE; /* FIXME: should be TRUE sometimes */
+				Information = sizeof(FILE_STANDARD_INFORMATION);
 				Status = STATUS_SUCCESS;
 			}
 			break;
@@ -55,13 +56,34 @@ SerialQueryInformation(
 			ASSERT(PositionInfo);
 
 			TRACE_(SERIAL, "IRP_MJ_QUERY_INFORMATION / FilePositionInformation\n");
-			if (BufferLength < sizeof(PFILE_POSITION_INFORMATION))
+			if (BufferLength < sizeof(FILE_POSITION_INFORMATION))
 				Status = STATUS_BUFFER_OVERFLOW;
 			else if (!PositionInfo)
 				Status = STATUS_INVALID_PARAMETER;
 			else
 			{
 				PositionInfo->CurrentByteOffset.QuadPart = 0;
+				Information = sizeof(FILE_POSITION_INFORMATION);
+				Status = STATUS_SUCCESS;
+			}
+			break;
+		}
+		case FileNetworkOpenInformation:
+		{
+			PFILE_NETWORK_OPEN_INFORMATION NetworkOpenInfo = (PFILE_NETWORK_OPEN_INFORMATION)SystemBuffer;
+
+			ASSERT(NetworkOpenInfo);
+
+			TRACE_(SERIAL, "IRP_MJ_QUERY_INFORMATION / FileNetworkInformation\n");
+			DbgBreakPoint();
+			if (BufferLength < sizeof(FILE_NETWORK_OPEN_INFORMATION))
+				Status = STATUS_BUFFER_OVERFLOW;
+			else if (!NetworkOpenInfo)
+				Status = STATUS_INVALID_PARAMETER;
+			else
+			{
+				RtlZeroMemory(NetworkOpenInfo, sizeof(FILE_NETWORK_OPEN_INFORMATION));
+				Information = sizeof(FILE_NETWORK_OPEN_INFORMATION);
 				Status = STATUS_SUCCESS;
 			}
 			break;