diff --git a/src/core/backbone_router/bbr_manager.cpp b/src/core/backbone_router/bbr_manager.cpp
index 8e61f10b1..43519f349 100644
--- a/src/core/backbone_router/bbr_manager.cpp
+++ b/src/core/backbone_router/bbr_manager.cpp
@@ -407,6 +407,7 @@ void Manager::HandleDuaRegistration(const Coap::Message &aMessage, const Ip6::Me
 #endif
 
     VerifyOrExit(isPrimary, status = ThreadStatusTlv::kDuaNotPrimary);
+    VerifyOrExit(Get<BackboneRouter::Leader>().HasDomainPrefix(), status = ThreadStatusTlv::kDuaGeneralFailure);
     VerifyOrExit(Get<BackboneRouter::Leader>().IsDomainUnicast(target), status = ThreadStatusTlv::kDuaInvalid);
 
     hasLastTransactionTime = (Tlv::Find<ThreadLastTransactionTimeTlv>(aMessage, lastTransactionTime) == OT_ERROR_NONE);
diff --git a/src/core/thread/dua_manager.cpp b/src/core/thread/dua_manager.cpp
index 5941bda7f..a9503a1c7 100644
--- a/src/core/thread/dua_manager.cpp
+++ b/src/core/thread/dua_manager.cpp
@@ -326,10 +326,12 @@ void DuaManager::HandleNotifierEvents(Events aEvents)
 #endif
     }
 
+#if OPENTHREAD_CONFIG_DUA_ENABLE
     if (aEvents.ContainsAny(kEventIp6AddressAdded))
     {
-        mRegistrationTask.Post();
+        UpdateRegistrationDelay(kNewDuaRegistrationDelay);
     }
+#endif
 }
 
 void DuaManager::HandleBackboneRouterPrimaryUpdate(BackboneRouter::Leader::State               aState,
diff --git a/src/core/thread/dua_manager.hpp b/src/core/thread/dua_manager.hpp
index be31a2d42..ac46c6b6c 100644
--- a/src/core/thread/dua_manager.hpp
+++ b/src/core/thread/dua_manager.hpp
@@ -170,6 +170,7 @@ private:
     enum
     {
         kNewRouterRegistrationDelay = 3, ///< Delay (in seconds) for waiting link establishment for a new Router.
+        kNewDuaRegistrationDelay    = 1, ///< Delay (in seconds) for newly added DUA.
     };
 
 #if OPENTHREAD_CONFIG_DUA_ENABLE