diff --git a/etc/kayobe/environments/aufn-ceph/a-universe-from-nothing.sh b/etc/kayobe/environments/aufn-ceph/a-universe-from-nothing.sh
index e594ea388..1464e6127 100755
--- a/etc/kayobe/environments/aufn-ceph/a-universe-from-nothing.sh
+++ b/etc/kayobe/environments/aufn-ceph/a-universe-from-nothing.sh
@@ -87,7 +87,7 @@ kayobe seed vm provision
 kayobe seed host configure
 
 # Deploy local pulp server as a container on the seed VM
-kayobe seed service deploy --tags seed-deploy-containers --kolla-tags none
+kayobe seed service deploy --tags seed-deploy-containers --kolla-tags none -e deploy_containers_registry_attempt_login=False
 
 # Deploying the seed restarts networking interface, run configure-local-networking.sh again to re-add routes.
 $KAYOBE_CONFIG_PATH/environments/$KAYOBE_ENVIRONMENT/configure-local-networking.sh
diff --git a/etc/kayobe/environments/aufn-ceph/networks.yml b/etc/kayobe/environments/aufn-ceph/networks.yml
index 4b1178110..89a30331c 100644
--- a/etc/kayobe/environments/aufn-ceph/networks.yml
+++ b/etc/kayobe/environments/aufn-ceph/networks.yml
@@ -55,19 +55,19 @@ cleaning_net_name: provision_wl
 # Network definitions.
 
 mgmt_cidr: 192.168.35.0/24
-mgmt_mtu: 1450
+mgmt_mtu: 1442
 # Native VLAN
 mgmt_physical_network: mgmt
 
 provision_oc_cidr: 192.168.33.0/24
-provision_oc_mtu: 1450
+provision_oc_mtu: 1442
 provision_oc_inspection_allocation_pool_start: 192.168.33.128
 provision_oc_inspection_allocation_pool_end: 192.168.33.254
 # Native VLAN
 provision_oc_physical_network: provision
 
 provision_wl_cidr: 192.168.36.0/24
-provision_wl_mtu: 1450
+provision_wl_mtu: 1442
 provision_wl_inspection_allocation_pool_start: 192.168.36.128
 provision_wl_inspection_allocation_pool_end: 192.168.36.254
 provision_wl_neutron_allocation_pool_start: 192.168.36.2
@@ -76,7 +76,7 @@ provision_wl_neutron_allocation_pool_end: 192.168.36.127
 provision_wl_physical_network: cloud
 
 internal_cidr: 192.168.37.0/24
-internal_mtu: 1450
+internal_mtu: 1442
 internal_allocation_pool_start: 192.168.37.3
 internal_allocation_pool_end: 192.168.37.254
 internal_vip_address: 192.168.37.2
@@ -89,7 +89,7 @@ external_vlan: 102
 external_physical_network: cloud
 
 public_cidr: 192.168.39.0/24
-public_mtu: 1450
+public_mtu: 1442
 public_allocation_pool_start: 192.168.39.3
 public_allocation_pool_end: 192.168.39.254
 public_vip_address: 192.168.39.2
@@ -97,17 +97,17 @@ public_vlan: 103
 public_physical_network: cloud
 
 tunnel_cidr: 192.168.40.0/24
-tunnel_mtu: 1450
+tunnel_mtu: 1442
 tunnel_vlan: 104
 tunnel_physical_network: cloud
 
 storage_cidr: 192.168.41.0/24
-storage_mtu: 1450
+storage_mtu: 1442
 storage_vlan: 105
 storage_physical_network: cloud
 
 storage_mgmt_cidr: 192.168.42.0/24
-storage_mgmt_mtu: 1450
+storage_mgmt_mtu: 1442
 storage_mgmt_vlan: 106
 storage_mgmt_physical_network: cloud