diff --git a/src/TopoMojo.Hypervisor/vSphere/NetworkManager.cs b/src/TopoMojo.Hypervisor/vSphere/NetworkManager.cs
index 2487b3e..7339447 100644
--- a/src/TopoMojo.Hypervisor/vSphere/NetworkManager.cs
+++ b/src/TopoMojo.Hypervisor/vSphere/NetworkManager.cs
@@ -35,7 +35,7 @@ public async Task Initialize()
             foreach (var pg in existing)
                 pg.Timestamp = ts;
 
-            _pgAllocation = existing.ToDictionary(p => p.Net);
+            _pgAllocation = existing.DistinctBy(p => p.Net).ToDictionary(p => p.Net);
 
             _vlanManager.Activate(
                 _pgAllocation.Values.Select(p => new Vlan
diff --git a/src/TopoMojo.Hypervisor/vSphere/NsxNetworkManager.cs b/src/TopoMojo.Hypervisor/vSphere/NsxNetworkManager.cs
index 04dd0f4..c97c4c7 100644
--- a/src/TopoMojo.Hypervisor/vSphere/NsxNetworkManager.cs
+++ b/src/TopoMojo.Hypervisor/vSphere/NsxNetworkManager.cs
@@ -295,6 +295,9 @@ config.defaultPortConfig is VMwareDVSPortSetting setting
                 }
             }
 
+            string info = string.Join('\n', [.. list.Select(p => $"{p.Net}::{p.Key}")]);
+            _logger.LogDebug("{info}", info);
+
             return [.. list];
         }