diff --git a/apps/assets/models/domain.py b/apps/assets/models/domain.py
index a7ce738c7..47d39f643 100644
--- a/apps/assets/models/domain.py
+++ b/apps/assets/models/domain.py
@@ -79,7 +79,13 @@ class Gateway(BaseUser):
                paramiko.SSHException,
                paramiko.ssh_exception.NoValidConnectionsError,
                socket.gaierror) as e:
-            return False, str(e)
+            err = str(e)
+            if err.startswith('[Errno None] Unable to connect to port'):
+                err = _('Unable to connect to port {port} on {ip}')
+                err = err.format(port=self.port, ip=self.ip)
+            elif err == 'Authentication failed.':
+                err = _('Authentication failed')
+            return False, err
 
         try:
             sock = proxy.get_transport().open_channel(
diff --git a/apps/locale/zh/LC_MESSAGES/django.mo b/apps/locale/zh/LC_MESSAGES/django.mo
index d18e7ef34..07fed0963 100644
Binary files a/apps/locale/zh/LC_MESSAGES/django.mo and b/apps/locale/zh/LC_MESSAGES/django.mo differ
diff --git a/apps/locale/zh/LC_MESSAGES/django.po b/apps/locale/zh/LC_MESSAGES/django.po
index 089eb3b3b..013697fec 100644
--- a/apps/locale/zh/LC_MESSAGES/django.po
+++ b/apps/locale/zh/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: JumpServer 0.3.3\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2021-07-23 16:38+0800\n"
+"POT-Creation-Date: 2021-07-26 15:48+0800\n"
 "PO-Revision-Date: 2021-05-20 10:54+0800\n"
 "Last-Translator: ibuler <ibuler@qq.com>\n"
 "Language-Team: JumpServer team<ibuler@qq.com>\n"
@@ -19,7 +19,7 @@ msgstr ""
 
 #: acls/models/base.py:25 acls/serializers/login_asset_acl.py:47
 #: applications/models/application.py:11 assets/models/asset.py:139
-#: assets/models/base.py:172 assets/models/cluster.py:18
+#: assets/models/base.py:175 assets/models/cluster.py:18
 #: assets/models/cmd_filter.py:21 assets/models/domain.py:21
 #: assets/models/group.py:20 assets/models/label.py:18 ops/mixin.py:24
 #: orgs/models.py:23 perms/models/base.py:49 settings/models.py:29
@@ -54,7 +54,7 @@ msgstr "激活中"
 # msgstr "创建日期"
 #: acls/models/base.py:32 applications/models/application.py:24
 #: assets/models/asset.py:144 assets/models/asset.py:220
-#: assets/models/base.py:177 assets/models/cluster.py:29
+#: assets/models/base.py:180 assets/models/cluster.py:29
 #: assets/models/cmd_filter.py:23 assets/models/cmd_filter.py:64
 #: assets/models/domain.py:22 assets/models/domain.py:53
 #: assets/models/group.py:23 assets/models/label.py:23 ops/models/adhoc.py:37
@@ -62,7 +62,7 @@ msgstr "激活中"
 #: terminal/models/storage.py:26 terminal/models/terminal.py:114
 #: tickets/models/ticket.py:73 users/models/group.py:16
 #: users/models/user.py:584 xpack/plugins/change_auth_plan/models.py:77
-#: xpack/plugins/cloud/models.py:35 xpack/plugins/cloud/models.py:116
+#: xpack/plugins/cloud/models.py:35 xpack/plugins/cloud/models.py:108
 #: xpack/plugins/gathered_user/models.py:26
 msgid "Comment"
 msgstr "备注"
@@ -127,7 +127,7 @@ msgstr "系统用户"
 #: users/templates/users/user_asset_permission.html:40
 #: users/templates/users/user_asset_permission.html:70
 #: xpack/plugins/change_auth_plan/models.py:282
-#: xpack/plugins/cloud/models.py:220
+#: xpack/plugins/cloud/models.py:212
 msgid "Asset"
 msgstr "资产"
 
@@ -176,7 +176,7 @@ msgstr "格式为逗号分隔的字符串, * 表示匹配所有. "
 #: applications/serializers/attrs/application_type/custom.py:21
 #: applications/serializers/attrs/application_type/mysql_workbench.py:30
 #: applications/serializers/attrs/application_type/vmware_client.py:26
-#: assets/models/base.py:173 assets/models/gathered_user.py:15
+#: assets/models/base.py:176 assets/models/gathered_user.py:15
 #: audits/models.py:100 authentication/forms.py:15 authentication/forms.py:17
 #: ops/models/adhoc.py:148 users/forms/profile.py:31 users/models/user.py:549
 #: users/templates/users/_select_user_modal.html:14
@@ -330,7 +330,7 @@ msgstr "目标URL"
 #: applications/serializers/attrs/application_type/custom.py:25
 #: applications/serializers/attrs/application_type/mysql_workbench.py:34
 #: applications/serializers/attrs/application_type/vmware_client.py:30
-#: assets/models/base.py:174 audits/signals_handler.py:58
+#: assets/models/base.py:177 audits/signals_handler.py:58
 #: authentication/forms.py:22
 #: authentication/templates/authentication/login.html:164
 #: settings/serializers/settings.py:94 users/forms/profile.py:21
@@ -392,7 +392,7 @@ msgstr "系统平台"
 
 #: assets/models/asset.py:186 assets/serializers/asset.py:65
 #: perms/serializers/asset/user_permission.py:41
-#: xpack/plugins/cloud/models.py:107 xpack/plugins/cloud/serializers.py:182
+#: xpack/plugins/cloud/models.py:99 xpack/plugins/cloud/serializers.py:182
 msgid "Protocols"
 msgstr "协议组"
 
@@ -483,25 +483,25 @@ msgstr "主机名原始"
 msgid "Labels"
 msgstr "标签管理"
 
-#: assets/models/asset.py:218 assets/models/base.py:180
+#: assets/models/asset.py:218 assets/models/base.py:183
 #: assets/models/cluster.py:28 assets/models/cmd_filter.py:26
 #: assets/models/cmd_filter.py:67 assets/models/group.py:21
 #: common/db/models.py:70 common/mixins/models.py:49 orgs/models.py:24
 #: orgs/models.py:422 perms/models/base.py:55 users/models/user.py:592
 #: users/serializers/group.py:33 xpack/plugins/change_auth_plan/models.py:81
-#: xpack/plugins/cloud/models.py:122 xpack/plugins/gathered_user/models.py:30
+#: xpack/plugins/cloud/models.py:114 xpack/plugins/gathered_user/models.py:30
 msgid "Created by"
 msgstr "创建者"
 
 # msgid "Created by"
 # msgstr "创建者"
-#: assets/models/asset.py:219 assets/models/base.py:178
+#: assets/models/asset.py:219 assets/models/base.py:181
 #: assets/models/cluster.py:26 assets/models/domain.py:24
 #: assets/models/gathered_user.py:19 assets/models/group.py:22
 #: assets/models/label.py:25 common/db/models.py:72 common/mixins/models.py:50
 #: ops/models/adhoc.py:38 ops/models/command.py:29 orgs/models.py:25
 #: orgs/models.py:420 perms/models/base.py:56 users/models/group.py:18
-#: users/models/user.py:774 xpack/plugins/cloud/models.py:125
+#: users/models/user.py:774 xpack/plugins/cloud/models.py:117
 msgid "Date created"
 msgstr "创建日期"
 
@@ -547,19 +547,19 @@ msgstr "可连接性"
 msgid "Date verified"
 msgstr "校验日期"
 
-#: assets/models/base.py:175 xpack/plugins/change_auth_plan/models.py:72
+#: assets/models/base.py:178 xpack/plugins/change_auth_plan/models.py:72
 #: xpack/plugins/change_auth_plan/models.py:197
 #: xpack/plugins/change_auth_plan/models.py:292
 msgid "SSH private key"
 msgstr "SSH密钥"
 
-#: assets/models/base.py:176 xpack/plugins/change_auth_plan/models.py:75
+#: assets/models/base.py:179 xpack/plugins/change_auth_plan/models.py:75
 #: xpack/plugins/change_auth_plan/models.py:193
 #: xpack/plugins/change_auth_plan/models.py:288
 msgid "SSH public key"
 msgstr "SSH公钥"
 
-#: assets/models/base.py:179 assets/models/gathered_user.py:20
+#: assets/models/base.py:182 assets/models/gathered_user.py:20
 #: common/db/models.py:73 common/mixins/models.py:51 ops/models/adhoc.py:39
 #: orgs/models.py:421
 msgid "Date updated"
@@ -652,6 +652,15 @@ msgstr "命令复核"
 msgid "Gateway"
 msgstr "网关"
 
+#: assets/models/domain.py:84
+#, python-brace-format
+msgid "Unable to connect to port {port} on {ip}"
+msgstr "无法连接到 {ip} 上的端口 {port}"
+
+#: assets/models/domain.py:87
+msgid "Authentication failed"
+msgstr "认证失败"
+
 #: assets/models/gathered_user.py:16
 msgid "Present"
 msgstr "存在"
@@ -1130,12 +1139,12 @@ msgid "MFA"
 msgstr "多因子认证"
 
 #: audits/models.py:106 xpack/plugins/change_auth_plan/models.py:303
-#: xpack/plugins/cloud/models.py:179
+#: xpack/plugins/cloud/models.py:171
 msgid "Reason"
 msgstr "原因"
 
 #: audits/models.py:107 tickets/models/ticket.py:47
-#: xpack/plugins/cloud/models.py:175 xpack/plugins/cloud/models.py:224
+#: xpack/plugins/cloud/models.py:167 xpack/plugins/cloud/models.py:216
 msgid "Status"
 msgstr "状态"
 
@@ -1169,7 +1178,7 @@ msgid "Hosts display"
 msgstr "主机名称"
 
 #: audits/serializers.py:89 ops/models/command.py:26
-#: xpack/plugins/cloud/models.py:173
+#: xpack/plugins/cloud/models.py:165
 msgid "Result"
 msgstr "结果"
 
@@ -3382,7 +3391,7 @@ msgstr ""
 msgid "Endpoint"
 msgstr "端点"
 
-#: terminal/serializers/storage.py:66 xpack/plugins/cloud/models.py:217
+#: terminal/serializers/storage.py:66 xpack/plugins/cloud/models.py:209
 msgid "Region"
 msgstr "地域"
 
@@ -4797,35 +4806,35 @@ msgstr "地域"
 msgid "Hostname strategy"
 msgstr "主机名策略"
 
-#: xpack/plugins/cloud/models.py:110 xpack/plugins/cloud/serializers.py:185
+#: xpack/plugins/cloud/models.py:102 xpack/plugins/cloud/serializers.py:185
 msgid "IP network segment group"
 msgstr "IP网段组"
 
-#: xpack/plugins/cloud/models.py:113 xpack/plugins/cloud/serializers.py:207
+#: xpack/plugins/cloud/models.py:105 xpack/plugins/cloud/serializers.py:207
 msgid "Always update"
 msgstr "总是更新"
 
-#: xpack/plugins/cloud/models.py:119
+#: xpack/plugins/cloud/models.py:111
 msgid "Date last sync"
 msgstr "最后同步日期"
 
-#: xpack/plugins/cloud/models.py:130 xpack/plugins/cloud/models.py:171
+#: xpack/plugins/cloud/models.py:122 xpack/plugins/cloud/models.py:163
 msgid "Sync instance task"
 msgstr "同步实例任务"
 
-#: xpack/plugins/cloud/models.py:182 xpack/plugins/cloud/models.py:227
+#: xpack/plugins/cloud/models.py:174 xpack/plugins/cloud/models.py:219
 msgid "Date sync"
 msgstr "同步日期"
 
-#: xpack/plugins/cloud/models.py:207
+#: xpack/plugins/cloud/models.py:199
 msgid "Sync task"
 msgstr "同步任务"
 
-#: xpack/plugins/cloud/models.py:211
+#: xpack/plugins/cloud/models.py:203
 msgid "Sync instance task history"
 msgstr "同步实例任务历史"
 
-#: xpack/plugins/cloud/models.py:214
+#: xpack/plugins/cloud/models.py:206
 msgid "Instance"
 msgstr "实例"