diff --git a/octavia/tests/tempest/v1/scenario/base.py b/octavia/tests/tempest/v1/scenario/base.py
index 7ad202e89d..8aaa8aca79 100644
--- a/octavia/tests/tempest/v1/scenario/base.py
+++ b/octavia/tests/tempest/v1/scenario/base.py
@@ -118,12 +118,14 @@ class BaseTestCase(manager.NetworkScenarioTest):
         """
         tenant_id = self.load_balancers_client.tenant_id
         try:
-            tenant_net = self._list_networks(tenant_id=tenant_id)[0]
+            tenant_net = self.admin_manager.networks_client.list_networks(
+                tenant_id=tenant_id)['networks'][0]
         except IndexError:
             tenant_net = None
 
         if tenant_net:
-            tenant_subnet = self._list_subnets(tenant_id=tenant_id)[0]
+            tenant_subnet = self.admin_manager.subnets_client.list_subnets(
+                tenant_id=tenant_id)['subnets'][0]
             self.subnet = tenant_subnet
             self.network = tenant_net
         else:
@@ -133,7 +135,8 @@ class BaseTestCase(manager.NetworkScenarioTest):
             # with the fixed network is the one we want.  In the future, we
             # should instead pull a subnet id from config, which is set by
             # devstack/admin/etc.
-            subnet = self._list_subnets(network_id=self.network['id'])[0]
+            subnet = self.admin_manager.subnets_client.list_subnets(
+                network_id=self.network['id'])['subnets'][0]
             self.subnet = subnet
 
     def _create_security_group_for_test(self):
diff --git a/octavia/tests/tempest/v2/scenario/base.py b/octavia/tests/tempest/v2/scenario/base.py
index f0518c95ed..ceca47eaaf 100644
--- a/octavia/tests/tempest/v2/scenario/base.py
+++ b/octavia/tests/tempest/v2/scenario/base.py
@@ -115,12 +115,14 @@ class BaseTestCase(manager.NetworkScenarioTest):
         fallback in absence of tenant networking.
         """
         try:
-            tenant_net = self._list_networks(tenant_id=self.tenant_id)[0]
+            tenant_net = self.admin_manager.networks_client.list_networks(
+                tenant_id=self.tenant_id)['networks'][0]
         except IndexError:
             tenant_net = None
 
         if tenant_net:
-            tenant_subnet = self._list_subnets(tenant_id=self.tenant_id)[0]
+            tenant_subnet = self.admin_manager.subnets_client.list_subnets(
+                tenant_id=self.tenant_id)['subnets'][0]
             self.subnet = tenant_subnet
             self.network = tenant_net
         else:
@@ -130,7 +132,8 @@ class BaseTestCase(manager.NetworkScenarioTest):
             # with the fixed network is the one we want.  In the future, we
             # should instead pull a subnet id from config, which is set by
             # devstack/admin/etc.
-            subnet = self._list_subnets(network_id=self.network['id'])[0]
+            subnet = self.admin_manager.subnets_client.list_subnets(
+                network_id=self.network['id'])['subnets'][0]
             self.subnet = subnet
 
     def _create_security_group_for_test(self):