diff --git a/src/Presentation/Nop.Web/Views/Topic/TopicBlock.cshtml b/src/Presentation/Nop.Web/Views/Topic/TopicBlock.cshtml
index 1b59c78997d..d41cd9c032e 100644
--- a/src/Presentation/Nop.Web/Views/Topic/TopicBlock.cshtml
+++ b/src/Presentation/Nop.Web/Views/Topic/TopicBlock.cshtml
@@ -26,6 +26,8 @@
                             $('#ph-topic-@Model.Id .topic-block-body').html(data.Body);
                             $('#ph-password-@Model.Id').hide();
                             $('#ph-topic-@Model.Id').show();
+                            //we need to re-run the validation plugin after the content is loaded after successful authentication
+                            $.validator.unobtrusive.parse('#ph-topic-@Model.Id');
                         } else {
                             $('#password-error-@Model.Id').text(data.Error).fadeIn("slow");
                             $('#ph-password-@Model.Id #password-@Model.Id').select().focus();
diff --git a/src/Presentation/Nop.Web/Views/Topic/TopicDetails.cshtml b/src/Presentation/Nop.Web/Views/Topic/TopicDetails.cshtml
index d138f7fb52e..4b0ded9c04f 100644
--- a/src/Presentation/Nop.Web/Views/Topic/TopicDetails.cshtml
+++ b/src/Presentation/Nop.Web/Views/Topic/TopicDetails.cshtml
@@ -55,6 +55,8 @@
                             $('#ph-topic .page-body').html(data.Body);
                             $('#ph-password').hide();
                             $('#ph-topic').show();
+                            //we need to re-run the validation plugin after the content is loaded after successful authentication
+                            $.validator.unobtrusive.parse('#ph-topic');
                         }
                         else {
                             $('#password-error').text(data.Error).fadeIn("slow");