diff --git a/generate_xlsx_report.py b/generate_xlsx_report.py
index 1b97c44..0eefff2 100644
--- a/generate_xlsx_report.py
+++ b/generate_xlsx_report.py
@@ -55,7 +55,7 @@ def get_company_name(product:str) -> str:
         elif 'opendds' in product.lower():
             return 'OpenDDS Foundation'
         elif 'coredx' in product.lower():
-            return 'Twin Oaks Computing'
+            return 'Twin Oaks Computing, Inc'
         elif 'intercom' in product.lower():
             return 'Kongsberg'
         elif 'fastdds' in product.lower():
@@ -72,7 +72,7 @@ def get_product_name(product:str) -> str:
         elif 'opendds' in product.lower():
             return 'OpenDDS ' + re.search(r'([\d.]+)', product).group(1)
         elif 'coredx' in product.lower():
-            return 'CoreDX ' + re.search(r'([\d.]+)', product).group(1)
+            return 'CoreDX DDS ' + re.search(r'([\d.]+)', product).group(1)
         elif 'intercom' in product.lower():
             return 'InterCOM DDS ' + re.search(r'([\d.]+)', product).group(1)
         elif 'fastdds' in product.lower():
diff --git a/srcCxx/shape_configurator_toc_coredx_dds.h b/srcCxx/shape_configurator_toc_coredx_dds.h
index 5c658f3..bccb52e 100644
--- a/srcCxx/shape_configurator_toc_coredx_dds.h
+++ b/srcCxx/shape_configurator_toc_coredx_dds.h
@@ -5,6 +5,7 @@
 #include "shapeDataReader.hh"
 #include "shapeDataWriter.hh"
 
+#define CONFIGURE_PARTICIPANT_FACTORY config_transport();
 #define LISTENER_STATUS_MASK_ALL (ALL_STATUS)
 
 void StringSeq_push(DDS::StringSeq  &string_seq, const char *elem)
@@ -17,3 +18,9 @@ const char *get_qos_policy_name(DDS_QosPolicyId_t policy_id)
   return DDS_qos_policy_str(policy_id); // not standard...
 }
 
+
+
+static void config_transport()
+{
+  setenv( "COREDX_UDP_RX_BUFFER_SIZE", "65536", 1 ); /* so we don't miss the first packets if they are large, retransmits may throw off test timing */
+}
diff --git a/srcCxx/shape_main.cxx b/srcCxx/shape_main.cxx
index b62abb9..ebbec4e 100644
--- a/srcCxx/shape_main.cxx
+++ b/srcCxx/shape_main.cxx
@@ -819,6 +819,7 @@ class ShapeApplication {
         dw_qos.representation.value = data_representation_seq;
 
 #elif  defined(TWINOAKS_COREDX)
+        dw_qos.rtps_writer.apply_filters = 0; 
         dw_qos.representation.value.clear( );
         dw_qos.representation.value.push_back( options->data_representation );
 
@@ -923,6 +924,8 @@ class ShapeApplication {
         data_representation_seq[0] = options->data_representation;
         dr_qos.representation.value = data_representation_seq;
 #elif  defined(TWINOAKS_COREDX)
+        dr_qos.rtps_reader.send_initial_nack = 1;
+        dr_qos.rtps_reader.precache_max_samples = 0;
         dr_qos.representation.value.clear( );
         dr_qos.representation.value.push_back( options->data_representation );