diff --git a/changelogs/fragments/3404-redfish_utils-skip-manager-network-check.yml b/changelogs/fragments/3404-redfish_utils-skip-manager-network-check.yml
new file mode 100644
index 0000000000..9b17761ff2
--- /dev/null
+++ b/changelogs/fragments/3404-redfish_utils-skip-manager-network-check.yml
@@ -0,0 +1,2 @@
+bugfixes:
+  - redfish_utils module utils - if a manager network property is not specified in the service, attempt to change the requested settings (https://github.com/ansible-collections/community.general/issues/3404/).
diff --git a/plugins/module_utils/redfish_utils.py b/plugins/module_utils/redfish_utils.py
index 55686b2f50..32a16932cf 100644
--- a/plugins/module_utils/redfish_utils.py
+++ b/plugins/module_utils/redfish_utils.py
@@ -2762,7 +2762,9 @@ class RedfishUtils(object):
             if isinstance(set_value, dict):
                 for subprop in payload[property].keys():
                     if subprop not in target_ethernet_current_setting[property]:
-                        return {'ret': False, 'msg': "Sub-property %s in nic_config is invalid" % subprop}
+                        # Not configured already; need to apply the request
+                        need_change = True
+                        break
                     sub_set_value = payload[property][subprop]
                     sub_cur_value = target_ethernet_current_setting[property][subprop]
                     if sub_set_value != sub_cur_value:
@@ -2776,7 +2778,9 @@ class RedfishUtils(object):
                 for i in range(len(set_value)):
                     for subprop in payload[property][i].keys():
                         if subprop not in target_ethernet_current_setting[property][i]:
-                            return {'ret': False, 'msg': "Sub-property %s in nic_config is invalid" % subprop}
+                            # Not configured already; need to apply the request
+                            need_change = True
+                            break
                         sub_set_value = payload[property][i][subprop]
                         sub_cur_value = target_ethernet_current_setting[property][i][subprop]
                         if sub_set_value != sub_cur_value: