diff --git a/controller/internal/routes/identity_api_model.go b/controller/internal/routes/identity_api_model.go
index 4a2c38af1..d337c1426 100644
--- a/controller/internal/routes/identity_api_model.go
+++ b/controller/internal/routes/identity_api_model.go
@@ -263,7 +263,7 @@ func MapAdvisorServiceReachabilityToRestEntity(entity *model.AdvisorServiceReach
 	for _, router := range entity.CommonRouters {
 		commonRouters = append(commonRouters, &rest_model.RouterEntityRef{
 			EntityRef: *ToEntityRef(router.Router.Name, router.Router, EdgeRouterLinkFactory),
-			IsOnline:  router.IsOnline,
+			IsOnline:  &router.IsOnline,
 		})
 	}
 
diff --git a/rest_model/router_entity_ref.go b/rest_model/router_entity_ref.go
index 8d7cf2a6d..7d2cc0bc7 100644
--- a/rest_model/router_entity_ref.go
+++ b/rest_model/router_entity_ref.go
@@ -33,6 +33,7 @@ import (
 	"github.com/go-openapi/errors"
 	"github.com/go-openapi/strfmt"
 	"github.com/go-openapi/swag"
+	"github.com/go-openapi/validate"
 )
 
 // RouterEntityRef router entity ref
@@ -42,7 +43,8 @@ type RouterEntityRef struct {
 	EntityRef
 
 	// is online
-	IsOnline bool `json:"isOnline,omitempty"`
+	// Required: true
+	IsOnline *bool `json:"isOnline"`
 }
 
 // UnmarshalJSON unmarshals this object from a JSON structure
@@ -56,7 +58,7 @@ func (m *RouterEntityRef) UnmarshalJSON(raw []byte) error {
 
 	// AO1
 	var dataAO1 struct {
-		IsOnline bool `json:"isOnline,omitempty"`
+		IsOnline *bool `json:"isOnline"`
 	}
 	if err := swag.ReadJSON(raw, &dataAO1); err != nil {
 		return err
@@ -77,7 +79,7 @@ func (m RouterEntityRef) MarshalJSON() ([]byte, error) {
 	}
 	_parts = append(_parts, aO0)
 	var dataAO1 struct {
-		IsOnline bool `json:"isOnline,omitempty"`
+		IsOnline *bool `json:"isOnline"`
 	}
 
 	dataAO1.IsOnline = m.IsOnline
@@ -99,12 +101,25 @@ func (m *RouterEntityRef) Validate(formats strfmt.Registry) error {
 		res = append(res, err)
 	}
 
+	if err := m.validateIsOnline(formats); err != nil {
+		res = append(res, err)
+	}
+
 	if len(res) > 0 {
 		return errors.CompositeValidationError(res...)
 	}
 	return nil
 }
 
+func (m *RouterEntityRef) validateIsOnline(formats strfmt.Registry) error {
+
+	if err := validate.Required("isOnline", "body", m.IsOnline); err != nil {
+		return err
+	}
+
+	return nil
+}
+
 // MarshalBinary interface implementation
 func (m *RouterEntityRef) MarshalBinary() ([]byte, error) {
 	if m == nil {
diff --git a/rest_server/embedded_spec.go b/rest_server/embedded_spec.go
index b56516d6c..d56a118cb 100644
--- a/rest_server/embedded_spec.go
+++ b/rest_server/embedded_spec.go
@@ -6818,6 +6818,9 @@ func init() {
         },
         {
           "type": "object",
+          "required": [
+            "isOnline"
+          ],
           "properties": {
             "isOnline": {
               "type": "boolean"
@@ -22439,6 +22442,9 @@ func init() {
         },
         {
           "type": "object",
+          "required": [
+            "isOnline"
+          ],
           "properties": {
             "isOnline": {
               "type": "boolean"
diff --git a/specs/swagger.yml b/specs/swagger.yml
index ef8d127a6..43aba18ad 100644
--- a/specs/swagger.yml
+++ b/specs/swagger.yml
@@ -5572,6 +5572,8 @@ definitions:
     allOf:
       - $ref: '#/definitions/entityRef'
       - type: object
+        required:
+          - isOnline
         properties:
           isOnline:
             type: boolean