diff --git a/apps/assets/models/domain.py b/apps/assets/models/domain.py
index 83b145249..7aafab504 100644
--- a/apps/assets/models/domain.py
+++ b/apps/assets/models/domain.py
@@ -120,6 +120,7 @@ class Gateway(BaseUser):
         except(paramiko.AuthenticationException,
                paramiko.BadAuthenticationType,
                paramiko.SSHException,
+               paramiko.ChannelException,
                paramiko.ssh_exception.NoValidConnectionsError,
                socket.gaierror) as e:
             err = str(e)
@@ -128,6 +129,8 @@ class Gateway(BaseUser):
                 err = err.format(port=self.port, ip=self.ip)
             elif err == 'Authentication failed.':
                 err = _('Authentication failed')
+            elif err == 'Connect failed':
+                err = _('Connect failed')
             self.is_connective = False
             return False, err
 
diff --git a/apps/locale/zh/LC_MESSAGES/django.po b/apps/locale/zh/LC_MESSAGES/django.po
index a7ea0e278..ebfe5b919 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: 2021-09-13 17:05+0800\n"
+"POT-Creation-Date: 2021-09-13 18:46+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"
@@ -375,7 +375,7 @@ 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:177 audits/signals_handler.py:63
+#: assets/models/base.py:177 audits/signals_handler.py:65
 #: authentication/forms.py:22
 #: authentication/templates/authentication/login.html:164
 #: settings/serializers/auth/ldap.py:44 users/forms/profile.py:21
@@ -678,15 +678,19 @@ msgstr "命令复核"
 msgid "Gateway"
 msgstr "网关"
 
-#: assets/models/domain.py:127
+#: assets/models/domain.py:128
 #, 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:130
+#: assets/models/domain.py:131
 msgid "Authentication failed"
 msgstr "认证失败"
 
+#: assets/models/domain.py:133
+msgid "Connect failed"
+msgstr "连接失败"
+
 #: assets/models/gathered_user.py:16
 msgid "Present"
 msgstr "存在"
@@ -1222,209 +1226,209 @@ msgstr "运行用户名称"
 msgid "User display"
 msgstr "用户名称"
 
-#: audits/signals_handler.py:62
+#: audits/signals_handler.py:64
 msgid "SSH Key"
 msgstr "SSH 密钥"
 
-#: audits/signals_handler.py:64
+#: audits/signals_handler.py:66
 msgid "SSO"
 msgstr ""
 
-#: audits/signals_handler.py:65
+#: audits/signals_handler.py:67
 msgid "Auth Token"
 msgstr "认证令牌"
 
-#: audits/signals_handler.py:66
+#: audits/signals_handler.py:68
 #: authentication/templates/authentication/login.html:210
 #: notifications/backends/__init__.py:11
 msgid "WeCom"
 msgstr "企业微信"
 
-#: audits/signals_handler.py:67
+#: audits/signals_handler.py:69
 #: authentication/templates/authentication/login.html:215
 #: notifications/backends/__init__.py:12
 msgid "DingTalk"
 msgstr "钉钉"
 
-#: audits/signals_handler.py:100
+#: audits/signals_handler.py:102
 msgid "User and Organization"
 msgstr "用户与组织"
 
-#: audits/signals_handler.py:101
+#: audits/signals_handler.py:103
 #, python-brace-format
 msgid "{User} JOINED {Organization}"
 msgstr "{User} 加入 {Organization}"
 
-#: audits/signals_handler.py:102
+#: audits/signals_handler.py:104
 #, python-brace-format
 msgid "{User} LEFT {Organization}"
 msgstr "{User} 离开 {Organization}"
 
-#: audits/signals_handler.py:105
+#: audits/signals_handler.py:107
 msgid "User and Group"
 msgstr "用户与用户组"
 
-#: audits/signals_handler.py:106
+#: audits/signals_handler.py:108
 #, python-brace-format
 msgid "{User} JOINED {UserGroup}"
 msgstr "{User} 加入 {UserGroup}"
 
-#: audits/signals_handler.py:107
+#: audits/signals_handler.py:109
 #, python-brace-format
 msgid "{User} LEFT {UserGroup}"
 msgstr "{User} 离开 {UserGroup}"
 
-#: audits/signals_handler.py:110
+#: audits/signals_handler.py:112
 msgid "Asset and SystemUser"
 msgstr "资产与系统用户"
 
-#: audits/signals_handler.py:111
+#: audits/signals_handler.py:113
 #, python-brace-format
 msgid "{Asset} ADD {SystemUser}"
 msgstr "{Asset} 添加 {SystemUser}"
 
-#: audits/signals_handler.py:112
+#: audits/signals_handler.py:114
 #, python-brace-format
 msgid "{Asset} REMOVE {SystemUser}"
 msgstr "{Asset} 移除 {SystemUser}"
 
-#: audits/signals_handler.py:115
+#: audits/signals_handler.py:117
 msgid "Node and Asset"
 msgstr "节点与资产"
 
-#: audits/signals_handler.py:116
+#: audits/signals_handler.py:118
 #, python-brace-format
 msgid "{Node} ADD {Asset}"
 msgstr "{Node} 添加 {Asset}"
 
-#: audits/signals_handler.py:117
+#: audits/signals_handler.py:119
 #, python-brace-format
 msgid "{Node} REMOVE {Asset}"
 msgstr "{Node} 移除 {Asset}"
 
-#: audits/signals_handler.py:120
+#: audits/signals_handler.py:122
 msgid "User asset permissions"
 msgstr "用户资产授权"
 
-#: audits/signals_handler.py:121
+#: audits/signals_handler.py:123
 #, python-brace-format
 msgid "{AssetPermission} ADD {User}"
 msgstr "{AssetPermission} 添加 {User}"
 
-#: audits/signals_handler.py:122
+#: audits/signals_handler.py:124
 #, python-brace-format
 msgid "{AssetPermission} REMOVE {User}"
 msgstr "{AssetPermission} 移除 {User}"
 
-#: audits/signals_handler.py:125
+#: audits/signals_handler.py:127
 msgid "User group asset permissions"
 msgstr "用户组资产授权"
 
-#: audits/signals_handler.py:126
+#: audits/signals_handler.py:128
 #, python-brace-format
 msgid "{AssetPermission} ADD {UserGroup}"
 msgstr "{AssetPermission} 添加 {UserGroup}"
 
-#: audits/signals_handler.py:127
+#: audits/signals_handler.py:129
 #, python-brace-format
 msgid "{AssetPermission} REMOVE {UserGroup}"
 msgstr "{AssetPermission} 移除 {UserGroup}"
 
-#: audits/signals_handler.py:130 perms/models/asset_permission.py:106
+#: audits/signals_handler.py:132 perms/models/asset_permission.py:106
 #: templates/_nav.html:78 users/templates/users/_user_detail_nav_header.html:31
 msgid "Asset permission"
 msgstr "资产授权"
 
-#: audits/signals_handler.py:131
+#: audits/signals_handler.py:133
 #, python-brace-format
 msgid "{AssetPermission} ADD {Asset}"
 msgstr "{AssetPermission} 添加 {Asset}"
 
-#: audits/signals_handler.py:132
+#: audits/signals_handler.py:134
 #, python-brace-format
 msgid "{AssetPermission} REMOVE {Asset}"
 msgstr "{AssetPermission} 移除 {Asset}"
 
-#: audits/signals_handler.py:135
+#: audits/signals_handler.py:137
 msgid "Node permission"
 msgstr "节点授权"
 
-#: audits/signals_handler.py:136
+#: audits/signals_handler.py:138
 #, python-brace-format
 msgid "{AssetPermission} ADD {Node}"
 msgstr "{AssetPermission} 添加 {Node}"
 
-#: audits/signals_handler.py:137
+#: audits/signals_handler.py:139
 #, python-brace-format
 msgid "{AssetPermission} REMOVE {Node}"
 msgstr "{AssetPermission} 移除 {Node}"
 
-#: audits/signals_handler.py:140
+#: audits/signals_handler.py:142
 msgid "Asset permission and SystemUser"
 msgstr "资产授权与系统用户"
 
-#: audits/signals_handler.py:141
+#: audits/signals_handler.py:143
 #, python-brace-format
 msgid "{AssetPermission} ADD {SystemUser}"
 msgstr "{AssetPermission} 添加 {SystemUser}"
 
-#: audits/signals_handler.py:142
+#: audits/signals_handler.py:144
 #, python-brace-format
 msgid "{AssetPermission} REMOVE {SystemUser}"
 msgstr "{AssetPermission} 移除 {SystemUser}"
 
-#: audits/signals_handler.py:145
+#: audits/signals_handler.py:147
 msgid "User application permissions"
 msgstr "用户应用授权"
 
-#: audits/signals_handler.py:146
+#: audits/signals_handler.py:148
 #, python-brace-format
 msgid "{ApplicationPermission} ADD {User}"
 msgstr "{ApplicationPermission} 添加 {User}"
 
-#: audits/signals_handler.py:147
+#: audits/signals_handler.py:149
 #, python-brace-format
 msgid "{ApplicationPermission} REMOVE {User}"
 msgstr "{ApplicationPermission} 移除 {User}"
 
-#: audits/signals_handler.py:150
+#: audits/signals_handler.py:152
 msgid "User group application permissions"
 msgstr "用户组应用授权"
 
-#: audits/signals_handler.py:151
+#: audits/signals_handler.py:153
 #, python-brace-format
 msgid "{ApplicationPermission} ADD {UserGroup}"
 msgstr "{ApplicationPermission} 添加 {UserGroup}"
 
-#: audits/signals_handler.py:152
+#: audits/signals_handler.py:154
 #, python-brace-format
 msgid "{ApplicationPermission} REMOVE {UserGroup}"
 msgstr "{ApplicationPermission} 移除 {UserGroup}"
 
-#: audits/signals_handler.py:155 perms/models/application_permission.py:37
+#: audits/signals_handler.py:157 perms/models/application_permission.py:37
 msgid "Application permission"
 msgstr "应用管理"
 
-#: audits/signals_handler.py:156
+#: audits/signals_handler.py:158
 #, python-brace-format
 msgid "{ApplicationPermission} ADD {Application}"
 msgstr "{ApplicationPermission} 添加 {Application}"
 
-#: audits/signals_handler.py:157
+#: audits/signals_handler.py:159
 #, python-brace-format
 msgid "{ApplicationPermission} REMOVE {Application}"
 msgstr "{ApplicationPermission} 移除 {Application}"
 
-#: audits/signals_handler.py:160
+#: audits/signals_handler.py:162
 msgid "Application permission and SystemUser"
 msgstr "应用授权与系统用户"
 
-#: audits/signals_handler.py:161
+#: audits/signals_handler.py:163
 #, python-brace-format
 msgid "{ApplicationPermission} ADD {SystemUser}"
 msgstr "{ApplicationPermission} 添加 {SystemUser}"
 
-#: audits/signals_handler.py:162
+#: audits/signals_handler.py:164
 #, python-brace-format
 msgid "{ApplicationPermission} REMOVE {SystemUser}"
 msgstr "{ApplicationPermission} 移除 {SystemUser}"
@@ -6158,6 +6162,3 @@ msgstr "旗舰版"
 #: xpack/plugins/license/models.py:77
 msgid "Community edition"
 msgstr "社区版"
-
-#~ msgid "Health check token"
-#~ msgstr "健康检查 Token"