diff --git a/neutron_tempest_plugin/scenario/test_connectivity.py b/neutron_tempest_plugin/scenario/test_connectivity.py
index 66c4789..7b13394 100644
--- a/neutron_tempest_plugin/scenario/test_connectivity.py
+++ b/neutron_tempest_plugin/scenario/test_connectivity.py
@@ -13,6 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import time
+
 import netaddr
 
 from neutron_lib import constants
@@ -103,6 +105,10 @@
         self.create_router_interface(ap1_rt['id'], ap1_subnet['id'])
         self.create_router_interface(ap2_rt['id'], ap2_subnet['id'])
 
+        # NOTE(ohryhorov): the sleep below is added to avoid the situation
+        # when a port is not in active state yet but static route is added.
+        time.sleep(15)
+
         self.client.update_router(
             ap1_rt['id'],
             routes=[{"destination": ap2_subnet['cidr'],