diff --git a/core/sawtooth/validator_config.py b/core/sawtooth/validator_config.py
index <HASH>..<HASH> 100644
--- a/core/sawtooth/validator_config.py
+++ b/core/sawtooth/validator_config.py
@@ -295,7 +295,7 @@ class ValidatorDefaultConfig(sawtooth.config.Config):
 
         # topological configuration
         self['TopologyAlgorithm'] = 'RandomWalk'
-        self['InitialConnectivity'] = 1
+        self['InitialConnectivity'] = 0
         self['TargetConnectivity'] = 3
         self['MaximumConnectivity'] = 15
         self['MinimumConnectivity'] = 1
Set InitialConnectivity to 0 by default

This allows starting up a single validator.  After this change,
production/test networks with more than one validator should set
InitialConnectivity to a value greater than 0.