diff --git a/source/client/src/clientEnv.c b/source/client/src/clientEnv.c
index 44abf71bd2..a64df9b938 100644
--- a/source/client/src/clientEnv.c
+++ b/source/client/src/clientEnv.c
@@ -374,8 +374,8 @@ int32_t openTransporter(const char *user, const char *auth, int32_t numOfThread,
 
   *pDnodeConn = rpcOpen(&rpcInit);
   if (*pDnodeConn == NULL) {
-    tscError("failed to init connection to server.");
-    code = TSDB_CODE_FAILED;
+    tscError("failed to init connection to server since %s", tstrerror(terrno));
+    code = terrno;
   }
 
   return code;
diff --git a/source/client/src/clientImpl.c b/source/client/src/clientImpl.c
index 4aa78caa15..664de5619f 100644
--- a/source/client/src/clientImpl.c
+++ b/source/client/src/clientImpl.c
@@ -2467,7 +2467,8 @@ TSDB_SERVER_STATUS taos_check_server_status(const char* fqdn, int port, char* de
 
   clientRpc = rpcOpen(&rpcInit);
   if (clientRpc == NULL) {
-    tscError("failed to init server status client");
+    code = terrno;
+    tscError("failed to init server status client since %s", tstrerror(code));
     goto _OVER;
   }
 
diff --git a/source/dnode/mgmt/node_mgmt/src/dmTransport.c b/source/dnode/mgmt/node_mgmt/src/dmTransport.c
index 9bbfdd18b0..6de9665db9 100644
--- a/source/dnode/mgmt/node_mgmt/src/dmTransport.c
+++ b/source/dnode/mgmt/node_mgmt/src/dmTransport.c
@@ -393,8 +393,8 @@ int32_t dmInitClient(SDnode *pDnode) {
 
   pTrans->clientRpc = rpcOpen(&rpcInit);
   if (pTrans->clientRpc == NULL) {
-    dError("failed to init dnode rpc client");
-    return -1;
+    dError("failed to init dnode rpc client since:%s", tstrerror(terrno));
+    return terrno;
   }
 
   dDebug("dnode rpc client is initialized");
@@ -437,8 +437,8 @@ int32_t dmInitStatusClient(SDnode *pDnode) {
 
   pTrans->statusRpc = rpcOpen(&rpcInit);
   if (pTrans->statusRpc == NULL) {
-    dError("failed to init dnode rpc status client");
-    return TSDB_CODE_OUT_OF_MEMORY;
+    dError("failed to init dnode rpc status client since %s", tstrerror(terrno)); 
+    return terrno;
   }
 
   dDebug("dnode rpc status client is initialized");
@@ -482,8 +482,8 @@ int32_t dmInitSyncClient(SDnode *pDnode) {
 
   pTrans->syncRpc = rpcOpen(&rpcInit);
   if (pTrans->syncRpc == NULL) {
-    dError("failed to init dnode rpc sync client");
-    return TSDB_CODE_OUT_OF_MEMORY;
+    dError("failed to init dnode rpc sync client since %s", tstrerror(terrno));
+    return terrno;
   }
 
   dDebug("dnode rpc sync client is initialized");
@@ -532,7 +532,7 @@ int32_t dmInitServer(SDnode *pDnode) {
   (void)taosVersionStrToInt(version, &(rpcInit.compatibilityVer));
   pTrans->serverRpc = rpcOpen(&rpcInit);
   if (pTrans->serverRpc == NULL) {
-    dError("failed to init dnode rpc server");
+    dError("failed to init dnode rpc server since:%s", tstrerror(terrno));
     return terrno;
   }
 
diff --git a/source/libs/function/src/udfd.c b/source/libs/function/src/udfd.c
index 7339f115a3..f65ff79553 100644
--- a/source/libs/function/src/udfd.c
+++ b/source/libs/function/src/udfd.c
@@ -1173,7 +1173,7 @@ int32_t udfdOpenClientRpc() {
   global.clientRpc = rpcOpen(&rpcInit);
   if (global.clientRpc == NULL) {
     fnError("failed to init dnode rpc client");
-    return -1;
+    return terrno;
   }
   return 0;
 }
diff --git a/source/libs/sync/test/sync_test_lib/src/syncIO.c b/source/libs/sync/test/sync_test_lib/src/syncIO.c
index 11894f7853..f5a32b98d9 100644
--- a/source/libs/sync/test/sync_test_lib/src/syncIO.c
+++ b/source/libs/sync/test/sync_test_lib/src/syncIO.c
@@ -193,7 +193,7 @@ static int32_t syncIOStartInternal(SSyncIO *io) {
     io->clientRpc = rpcOpen(&rpcInit);
     if (io->clientRpc == NULL) {
       sError("failed to initialize RPC");
-      return -1;
+      return terrno;
     }
   }
 
@@ -214,7 +214,7 @@ static int32_t syncIOStartInternal(SSyncIO *io) {
     void *pRpc = rpcOpen(&rpcInit);
     if (pRpc == NULL) {
       sError("failed to start RPC server");
-      return -1;
+      return terrno;
     }
   }
 
diff --git a/source/libs/transport/test/cliBench.c b/source/libs/transport/test/cliBench.c
index 8a5276b814..ec08f1baf0 100644
--- a/source/libs/transport/test/cliBench.c
+++ b/source/libs/transport/test/cliBench.c
@@ -160,7 +160,7 @@ int main(int argc, char *argv[]) {
   void *pRpc = rpcOpen(&rpcInit);
   if (pRpc == NULL) {
     tError("failed to initialize RPC");
-    return -1;
+    return terrno;
   }
 
   tInfo("client is initialized");