diff --git a/source/dnode/mgmt/node_mgmt/src/dmTransport.c b/source/dnode/mgmt/node_mgmt/src/dmTransport.c
index 61543e619e..e13e2cee8e 100644
--- a/source/dnode/mgmt/node_mgmt/src/dmTransport.c
+++ b/source/dnode/mgmt/node_mgmt/src/dmTransport.c
@@ -213,9 +213,9 @@ static void dmProcessRpcMsg(SDnode *pDnode, SRpcMsg *pRpc, SEpSet *pEpSet) {
     goto _OVER;
   } else if ((pRpc->code == TSDB_CODE_RPC_NETWORK_UNAVAIL || pRpc->code == TSDB_CODE_RPC_BROKEN_LINK) &&
              (!IsReq(pRpc)) && (pRpc->pCont == NULL)) {
-    dGError("msg:%p, type:%s pCont is NULL, err: %s", pRpc, TMSG_INFO(pRpc->msgType), tstrerror(pRpc->code));
-    code = pRpc->code;
-    goto _OVER;
+    // dGError("msg:%p, type:%s pCont is NULL, err: %s", pRpc, TMSG_INFO(pRpc->msgType), tstrerror(pRpc->code));
+    // code = pRpc->code;
+    // goto _OVER;
   }
 
   if (pHandle->defaultNtype == NODE_END) {
diff --git a/source/libs/transport/src/transCli.c b/source/libs/transport/src/transCli.c
index 724075344a..8fc5d1a135 100644
--- a/source/libs/transport/src/transCli.c
+++ b/source/libs/transport/src/transCli.c
@@ -1679,7 +1679,7 @@ void cliConnCb(uv_connect_t* req, int status) {
   STUB_RAND_NETWORK_ERR(status);
 
   if (status != 0) {
-    tDebug("%s conn %p failed to connect to %s since %s", CONN_GET_INST_LABEL(pConn), pConn, pConn->dstAddr,
+    tError("%s conn %p failed to connect to %s since %s", CONN_GET_INST_LABEL(pConn), pConn, pConn->dstAddr,
            uv_strerror(status));
     cliMayUpdateFqdnCache(pThrd->fqdn2ipCache, pConn->dstAddr);
     TAOS_UNUSED(transUnrefCliHandle(pConn));
@@ -1832,15 +1832,20 @@ static FORCE_INLINE int32_t cliUpdateFqdnCache(SHashObj* cache, char* fqdn) {
   if (code == 0) {
     size_t    len = strlen(fqdn);
     uint32_t* v = taosHashGet(cache, fqdn, len);
-    if (addr != *v) {
-      char old[TSDB_FQDN_LEN] = {0}, new[TSDB_FQDN_LEN] = {0};
-      tinet_ntoa(old, *v);
-      tinet_ntoa(new, addr);
-      tWarn("update ip of fqdn:%s, old: %s, new: %s", fqdn, old, new);
-      code = taosHashPut(cache, fqdn, strlen(fqdn), &addr, sizeof(addr));
+    if (v != NULL) {
+      if (addr != *v) {
+        char old[TSDB_FQDN_LEN] = {0}, new[TSDB_FQDN_LEN] = {0};
+        tinet_ntoa(old, *v);
+        tinet_ntoa(new, addr);
+        tWarn("update ip of fqdn:%s, old: %s, new: %s", fqdn, old, new);
+        code = taosHashPut(cache, fqdn, len, &addr, sizeof(addr));
+      }
+    } else {
+      code = taosHashPut(cache, fqdn, len, &addr, sizeof(addr));
     }
   } else {
     code = TSDB_CODE_RPC_FQDN_ERROR;  // TSDB_CODE_RPC_INVALID_FQDN;
+    tWarn("failed to get ip from fqdn:%s since %s", fqdn, tstrerror(code));
   }
   return code;
 }
@@ -2934,7 +2939,7 @@ void cliMayResetRespCode(SCliReq* pReq, STransMsg* pResp) {
   // check whole vnodes is offline on this vgroup
   if (((pCtx->epSet != NULL) && pCtx->epsetRetryCnt >= pCtx->epSet->numOfEps) || pCtx->retryStep > 0) {
     if (pResp->code == TSDB_CODE_RPC_NETWORK_UNAVAIL) {
-      pResp->code = TSDB_CODE_RPC_NETWORK_UNAVAIL;
+      pResp->code = TSDB_CODE_RPC_NETWORK_UNAVAIL;  // TSDB_CODE_RPC_NETWORK_UNAVAIL;
     } else if (pResp->code == TSDB_CODE_RPC_BROKEN_LINK) {
       pResp->code = TSDB_CODE_RPC_NETWORK_UNAVAIL;  // TSDB_CODE_RPC_SOMENODE_BROKEN_LINK;
     }