diff --git a/extraconfig/nova_metadata/krb-service-principals/role.role.j2.yaml b/extraconfig/nova_metadata/krb-service-principals/role.role.j2.yaml
index 46597ce79e..8418272936 100644
--- a/extraconfig/nova_metadata/krb-service-principals/role.role.j2.yaml
+++ b/extraconfig/nova_metadata/krb-service-principals/role.role.j2.yaml
@@ -71,13 +71,29 @@ resources:
             fqdns:
 {%- for network in networks if network.vip|default(false) and network.name in role.networks %}
 {%- if network.name == 'External' %}
-              external: {get_param: CloudName}
+  {%- if network.service_net_map_replace is defined %}
+              {{network.service_net_map_replace}}: {get_param: CloudName}
+  {%- else %}
+              {{network.name_lower}}: {get_param: CloudName}
+  {%- endif %}
 {%- elif network.name == 'InternalApi' %}
-              internal_api: {get_param: CloudNameInternal}
+  {%- if network.service_net_map_replace is defined %}
+              {{network.service_net_map_replace}}: {get_param: CloudNameInternal}
+  {%- else %}
+              {{network.name_lower}}: {get_param: CloudNameInternal}
+  {%- endif %}
 {%- elif network.name == 'StorageMgmt' %}
-              storage_mgmt: {get_param: CloudNameStorageManagement}
+  {%- if network.service_net_map_replace is defined %}
+              {{network.service_net_map_replace}}: {get_param: CloudNameStorageManagement}
+  {%- else %}
+              {{network.name_lower}}: {get_param: CloudNameStorageManagement}
+  {%- endif %}
 {%- else %}
+  {%- if network.service_net_map_replace is defined %}
+              {{network.service_net_map_replace}}: {get_param: CloudNameStorageManagement}
+  {%- else %}
               {{network.name_lower}}: {get_param: CloudName{{network.name}}}
+  {%- endif %}
 {%- endif %}
 {%- endfor %}
               ctlplane: {get_param: CloudNameCtlplane}
diff --git a/releasenotes/notes/fix-custom-netname-lower-and-tls-everywhere-1f2300f9a2ba4d98.yaml b/releasenotes/notes/fix-custom-netname-lower-and-tls-everywhere-1f2300f9a2ba4d98.yaml
new file mode 100644
index 0000000000..11c546490e
--- /dev/null
+++ b/releasenotes/notes/fix-custom-netname-lower-and-tls-everywhere-1f2300f9a2ba4d98.yaml
@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    Fixes an issue where deployment would fail if a non-default ``name_lower``
+    is used in network data for one of the networks: ``External``,
+    ``InternalApi`` or ``StorageMgmt``.
+    (See `bug: 1830852 <https://bugs.launchpad.net/tripleo/+bug/1830852>`_.)
\ No newline at end of file