diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index 08e09dca2f0bff30655ff20fe5ad67759fd1bd39..db6f1c0e1eb2a029779fad155265d24de749ec24 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -86,6 +86,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_RPC_NETWORK_UNAVAIL           TAOS_DEF_ERROR_CODE(0, 0x0102)
 #define TSDB_CODE_RPC_FQDN_ERROR                TAOS_DEF_ERROR_CODE(0, 0x0103)
 #define TSDB_CODE_RPC_PORT_EADDRINUSE           TAOS_DEF_ERROR_CODE(0, 0x0104)
+#define TSDB_CODE_RPC_BROKEN_LINK               TAOS_DEF_ERROR_CODE(0, 0x0105)
 
 //client
 #define TSDB_CODE_TSC_INVALID_OPERATION         TAOS_DEF_ERROR_CODE(0, 0x0200)
diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 587e2bad98710b7a42b37522e89d44b5cb89833f..e21237ec10309f3b926d701fb4b80ad9cc31f58b 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -399,7 +399,7 @@ void cliHandleExcept(SCliConn* pConn) {
     STransConnCtx* pCtx = pMsg ? pMsg->ctx : NULL;
 
     STransMsg transMsg = {0};
-    transMsg.code = TSDB_CODE_RPC_NETWORK_UNAVAIL;
+    transMsg.code = TSDB_CODE_RPC_BROKEN_LINK;
     transMsg.msgType = pMsg ? pMsg->msg.msgType + 1 : 0;
     transMsg.info.ahandle = NULL;
 
diff --git a/source/util/src/terror.c b/source/util/src/terror.c
index 96f0fb21caf37dc2a7713b162b0732d9e40e1130..3ab307dc3fcd522a9427f911d5d27c220c7959fc 100644
--- a/source/util/src/terror.c
+++ b/source/util/src/terror.c
@@ -89,8 +89,8 @@ TAOS_DEFINE_ERROR(TSDB_CODE_REF_NOT_EXIST,                "Ref is not there")
 TAOS_DEFINE_ERROR(TSDB_CODE_RPC_REDIRECT,                 "Redirect")
 TAOS_DEFINE_ERROR(TSDB_CODE_RPC_AUTH_FAILURE,             "Authentication failure")
 TAOS_DEFINE_ERROR(TSDB_CODE_RPC_NETWORK_UNAVAIL,          "Unable to establish connection")
-TAOS_DEFINE_ERROR(TSDB_CODE_RPC_FQDN_ERROR,               "Unable to resolve FQDN")
 TAOS_DEFINE_ERROR(TSDB_CODE_RPC_PORT_EADDRINUSE,          "Port already in use")
+TAOS_DEFINE_ERROR(TSDB_CODE_RPC_BROKEN_LINK,               "Conn is broken")
 
 //client
 TAOS_DEFINE_ERROR(TSDB_CODE_TSC_INVALID_OPERATION,        "Invalid operation")