diff --git a/py-json/realm.py b/py-json/realm.py
index ad15a706..751e99db 100755
--- a/py-json/realm.py
+++ b/py-json/realm.py
@@ -1170,8 +1170,12 @@ class L3CXProfile(BaseProfile):
         else:
             output_format = report_file.split('.')[-1]
 
-        # Step 1, column names
-        fields = ",".join(col_names)
+        # Step 1, column names . what is this for?
+        fields=None 
+        if col_names is not None and len(col_names) > 0:
+            fields = ",".join(col_names)
+        else:
+            header_row=list((list(self.json_get("/endp/all")['endpoint'][0].values())[0].keys()))
         print(fields)
         # Step 2, monitor columns
         start_time = datetime.datetime.now()
@@ -1185,7 +1189,7 @@ class L3CXProfile(BaseProfile):
         timestamps = []
         # for x in range(0,int(round(iterations,0))):
         while datetime.datetime.now() < end_time:
-            if fields == None:
+            if fields is None:
                 response = self.json_get("/endp/all")
             else:
                 response = self.json_get("/endp/%s?fields=%s" % (created_cx, fields))
diff --git a/py-scripts/test_ipv4_variable_time.py b/py-scripts/test_ipv4_variable_time.py
index 368489b1..ebd10e05 100755
--- a/py-scripts/test_ipv4_variable_time.py
+++ b/py-scripts/test_ipv4_variable_time.py
@@ -200,8 +200,10 @@ python3 ./test_ipv4_variable_time.py
         num_sta = int(args.num_stations)
 
     #Create directory
-    homedir=str(datetime.datetime.now()).replace(':','-')+'test_ipv4_variable_time'
-    os.mkdir('/home/lanforge/report_data/'+homedir)
+    homedir = str(datetime.datetime.now().strftime("%Y-%m-%d-%H-%M")).replace(':','-')+'test_ipv4_variable_time'
+    path = os.path.join('/home/lanforge/report-data/',homedir)
+    os.mkdir(path)
+
     if args.report_file is None:
         if args.output_format in ['csv','json','html','hdf','stata','pickle','pdf','png','df','parquet','xlsx']:
             report_f='/home/lanforge/report-data/'+homedir+'/data.' + args.output_format
@@ -253,7 +255,6 @@ python3 ./test_ipv4_variable_time.py
                                     created_cx= layer3connections,
                                     output_format=output,
                                     script_name='test_ipv4_variable_time',
-                                    show=show,
                                     arguments=args)
 
     ip_var_test.stop()
@@ -265,7 +266,7 @@ python3 ./test_ipv4_variable_time.py
     if ip_var_test.passes():
         ip_var_test.exit_success()
 
-    IPV4VariableTime.cx_profile.stop_cx() #is this needed? 
+    IPV4VariableTime.cx_profile.stop_cx() #is this needed?
 
 if __name__ == "__main__":
     main()