diff --git a/client/taskenv/env.go b/client/taskenv/env.go
index 78eecf4d5d0e..5b42a17a7533 100644
--- a/client/taskenv/env.go
+++ b/client/taskenv/env.go
@@ -544,15 +544,9 @@ func (b *Builder) setTask(task *structs.Task) *Builder {
 	if task.Resources == nil {
 		b.memLimit = 0
 		b.cpuLimit = 0
-		b.networks = []*structs.NetworkResource{}
 	} else {
 		b.memLimit = int64(task.Resources.MemoryMB)
 		b.cpuLimit = int64(task.Resources.CPU)
-		// Copy networks to prevent sharing
-		b.networks = make([]*structs.NetworkResource, len(task.Resources.Networks))
-		for i, n := range task.Resources.Networks {
-			b.networks[i] = n.Copy()
-		}
 	}
 	return b
 }
@@ -622,6 +616,15 @@ func (b *Builder) setAlloc(alloc *structs.Allocation) *Builder {
 			}
 		}
 	} else if alloc.TaskResources != nil {
+		if tr, ok := alloc.TaskResources[b.taskName]; ok {
+			// Copy networks to prevent sharing
+			b.networks = make([]*structs.NetworkResource, len(tr.Networks))
+			for i, n := range tr.Networks {
+				b.networks[i] = n.Copy()
+			}
+
+		}
+
 		for taskName, resources := range alloc.TaskResources {
 			// Add ports from other tasks
 			if taskName == b.taskName {
diff --git a/client/taskenv/env_test.go b/client/taskenv/env_test.go
index 457befbf3677..531d8f168400 100644
--- a/client/taskenv/env_test.go
+++ b/client/taskenv/env_test.go
@@ -228,12 +228,11 @@ func TestEnvironment_AsList_Old(t *testing.T) {
 				Device: "eth0",
 				IP:     "192.168.0.100",
 				ReservedPorts: []structs.Port{
-					{Label: "admin", Value: 5000},
 					{Label: "ssh", Value: 22},
 					{Label: "other", Value: 1234},
 				},
 				MBits:        50,
-				DynamicPorts: []structs.Port{{Label: "http"}},
+				DynamicPorts: []structs.Port{{Label: "http", Value: 2000}},
 			},
 		},
 	}
@@ -244,10 +243,10 @@ func TestEnvironment_AsList_Old(t *testing.T) {
 			Networks: []*structs.NetworkResource{
 				{
 					Device:        "eth0",
-					IP:            "192.168.0.100",
-					ReservedPorts: []structs.Port{{Label: "admin", Value: 5000}},
+					IP:            "127.0.0.1",
+					ReservedPorts: []structs.Port{{Label: "https", Value: 8080}},
 					MBits:         50,
-					DynamicPorts:  []structs.Port{{Label: "http", Value: 2000}},
+					DynamicPorts:  []structs.Port{{Label: "http", Value: 80}},
 				},
 			},
 		},
@@ -270,10 +269,11 @@ func TestEnvironment_AsList_Old(t *testing.T) {
 		"taskEnvKey": "taskEnvVal",
 	}
 	task.Resources.Networks = []*structs.NetworkResource{
+		// Nomad 0.8 didn't fully populate the fields in task Resource Networks
 		{
-			IP:            "127.0.0.1",
-			ReservedPorts: []structs.Port{{Label: "http", Value: 80}},
-			DynamicPorts:  []structs.Port{{Label: "https", Value: 8080}},
+			IP:            "",
+			ReservedPorts: []structs.Port{{Label: "https"}},
+			DynamicPorts:  []structs.Port{{Label: "http"}},
 		},
 	}
 	env := NewBuilder(n, a, task, "global").SetDriverNetwork(