diff --git a/tripleo_ansible/roles/tripleo-hieradata/templates/fqdn.j2 b/tripleo_ansible/roles/tripleo-hieradata/templates/fqdn.j2
index 46618f03b..a6bc9e7ba 100644
--- a/tripleo_ansible/roles/tripleo-hieradata/templates/fqdn.j2
+++ b/tripleo_ansible/roles/tripleo-hieradata/templates/fqdn.j2
@@ -1,9 +1,9 @@
 {% set fqdn = {} %}
 {% set _ = fqdn.__setitem__('fqdn_ctlplane', (inventory_hostname ~ '.ctlplane.' ~ cloud_domain)) %}
 {% set _ = fqdn.__setitem__('fqdn_canonical', (inventory_hostname ~ '.' ~ cloud_domain)) %}
-{% if role_networks is defined %}
+{% if enabled_networks is defined and enabled_networks %}
 {%   for network in enabled_networks %}
-{%     if network in role_networks %}
+{%     if role_networks is defined and role_networks and network in role_networks %}
 {%       set _ = fqdn.__setitem__(('fqdn_' ~ networks[network]['name_lower']), (inventory_hostname ~ '.' ~ network | lower ~ '.' ~ cloud_domain)) %}
 {%     endif %}
 {%   endfor %}
diff --git a/tripleo_ansible/roles/tripleo-hieradata/templates/net_ip_map.j2 b/tripleo_ansible/roles/tripleo-hieradata/templates/net_ip_map.j2
index 8a5ec864e..99e641e80 100644
--- a/tripleo_ansible/roles/tripleo-hieradata/templates/net_ip_map.j2
+++ b/tripleo_ansible/roles/tripleo-hieradata/templates/net_ip_map.j2
@@ -6,8 +6,9 @@
 {% set _ = net_ip_map.__setitem__('ctlplane_subnet', ctlplane_ip ~ '/' ~ ctlplane_subnet_cidr) %}
 {% endif %}
 {% endif %}
+{% if enabled_networks is defined and enabled_networks %}
 {% for network in enabled_networks %}
-{%   if network_cidrs is defined and ((network ~ '_cidr') in network_cidrs) %}
+{%   if network_cidrs is defined and network_cidrs and ((network ~ '_cidr') in network_cidrs) %}
 {%     set _ = net_ip_map.__setitem__(networks[network]['name'], (hostvars[inventory_hostname][networks[network]['name'] ~ '_ip'])) %}
 {%     set _ = net_ip_map.__setitem__((networks[network]['name'] ~ '_subnet'), (hostvars[inventory_hostname][networks[network]['name'] ~ '_ip'] ~ '/' ~ network_cidrs[network ~ '_cidr'])) %}
 {%     set _ = net_ip_map.__setitem__((networks[network]['name'] ~ '_uri'), (hostvars[inventory_hostname][networks[network]['name'] ~ '_ip'] | ipwrap)) %}
@@ -18,5 +19,6 @@
 {%     set _ = net_ip_map.__setitem__((networks[network]['name'] ~ '_uri'), "") %}
 {%   endif %}
 {% endfor %}
+{% endif %}
 {# RENDER #}
 {{ net_ip_map | to_nice_json }}
diff --git a/tripleo_ansible/roles/tripleo-ssh-known-hosts/tasks/main.yml b/tripleo_ansible/roles/tripleo-ssh-known-hosts/tasks/main.yml
index 9c1b40cf5..ded195fdc 100644
--- a/tripleo_ansible/roles/tripleo-ssh-known-hosts/tasks/main.yml
+++ b/tripleo_ansible/roles/tripleo-ssh-known-hosts/tasks/main.yml
@@ -49,7 +49,8 @@
         ssh_known_hosts_lines: |-
           {%- for host in groups['overcloud'] | intersect(play_hosts) %}
           [{{ ctlplane_ip }}]*,[{{ host }}.{{ cloud_domain }}]*,[{{ host }}]*
-          {%- if enabled_networks | length > 0 and hostvars[host]['role_networks'] is defined and hostvars[host]['role_networks'] | length > 0 %},
+          {%- if (enabled_networks and enabled_networks | length > 0 and 'role_networks' in hostvars[host]
+                  and hostvars[host]['role_networks'] and hostvars[host]['role_networks'] | length > 0) %},
           {%- for network in enabled_networks %}
           {%- if network in hostvars[host]['role_networks'] %}
           [{{ hostvars[host][networks[network]['name'] ~ '_ip'] }}]*,[{{ host }}.{{ network.lower() }}]*,{% if 1 %}{% endif %}