diff --git a/app/models/authentication.rb b/app/models/authentication.rb
index 096f40a45b5f..36604c161b29 100644
--- a/app/models/authentication.rb
+++ b/app/models/authentication.rb
@@ -92,7 +92,7 @@ def validation_successful
   def validation_failed(status = :unreachable, message = nil)
     message ||= ERRORS[status]
     _log.warn("[#{resource_type}] [#{resource_id}], previously valid on: #{last_valid_on}, previous status: [#{self.status}]")
-    update_attributes(:status => status.to_s.capitalize, :status_details => message.to_s, :last_invalid_on => Time.now.utc)
+    update_attributes(:status => status.to_s.capitalize, :status_details => message.to_s.truncate(200), :last_invalid_on => Time.now.utc)
     raise_event(status, message)
   end
 
diff --git a/app/models/mixins/authentication_mixin.rb b/app/models/mixins/authentication_mixin.rb
index 15a2594ec9a4..827917543aae 100644
--- a/app/models/mixins/authentication_mixin.rb
+++ b/app/models/mixins/authentication_mixin.rb
@@ -334,7 +334,7 @@ def authentication_check(*args)
       status == :valid ? auth.validation_successful : auth.validation_failed(status, details)
     end
 
-    return status == :valid, details
+    return status == :valid, details.truncate(20000)
   end
 
   def default_authentication
@@ -360,9 +360,9 @@ def authentication_check_no_validation(type, options)
         end
       end
 
-    details &&= details.to_s.truncate(200)
+    details &&= details.to_s
 
-    _log.warn("#{header} Validation failed: #{status}, #{details}") unless status == :valid
+    _log.warn("#{header} Validation failed: #{status}, #{details.truncate(200)}") unless status == :valid
     return status, details
   end