应该是与我们授权服务器的连接有问题，在命令终端中，运行以下命令：

curl -kv https://license.appnode.com/

看看输出什么，正常应该是：

# curl -kv https://license.appnode.com/
* About to connect() to license.appnode.com port 443 (#0)
*   Trying 118.178.173.228...
* Connected to license.appnode.com (118.178.173.228) port 443 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
* skipping SSL peer certificate verification
* SSL connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
* Server certificate:
*       subject: CN=license.appnode.com,O=AppNode User,C=CN
*       start date: Jun 26 14:19:44 2018 GMT
*       expire date: Jun 27 14:19:44 2028 GMT
*       common name: license.appnode.com
*       issuer: E=support@appnode.com,CN=AppNode Free Certification Authority,OU=AppNode Free Certification Authority,O="Fuzhou Quyun Technology Co., Ltd.",L=Fuzhou,ST=Fujian,C=CN
> GET / HTTP/1.1
> User-Agent: curl/7.29.0
> Host: license.appnode.com
> Accept: */*
> 
< HTTP/1.1 200 OK
< Content-Type: application/json; charset=utf-8
< Server: apibox/license-public-api
< X-Request-Id: 7647045d-fdf5-11e8-8144-eff7458870d5
< Date: Wed, 12 Dec 2018 10:05:32 GMT
< Content-Length: 76
< 
* Connection #0 to host license.appnode.com left intact
{"ACTION":"","CODE":"ActionNotExist","MESSAGE":"API action does not exist!"}

怎么是解析到美国的ip
我用的香港的vps

我们在美国有部署授权节点，目前看也是正常的：

# curl -kv https://license.appnode.com/
* About to connect() to license.appnode.com port 443 (#0)
*   Trying 47.88.18.173...
* Connected to license.appnode.com (47.88.18.173) port 443 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
* skipping SSL peer certificate verification
* SSL connection using TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
* Server certificate:
*       subject: E=hilyjiang@gmail.com,CN=license.appnode.com,OU=license.appnode.com,O="Quyun, Ltd",L=Fuzhou,ST=Fujian,C=CN
*       start date: Mar 20 14:41:26 2015 GMT
*       expire date: Mar 17 14:41:26 2025 GMT
*       common name: license.appnode.com
*       issuer: E=support@appnode.com,CN=AppNode Free Certification Authority,OU=AppNode Free Certification Authority,O="Fuzhou Quyun Technology Co., Ltd.",L=Fuzhou,ST=Fujian,C=CN
> GET / HTTP/1.1
> User-Agent: curl/7.29.0
> Host: license.appnode.com
> Accept: */*
> 
< HTTP/1.1 200 OK
< Server: nginx
< Date: Thu, 13 Dec 2018 04:13:41 GMT
< Content-Type: application/json; charset=utf-8
< Content-Length: 76
< Connection: keep-alive
< X-Request-Id: 795a5549-fe8d-11e8-89cf-0c4199cd4e87
< 
* Connection #0 to host license.appnode.com left intact
{"ACTION":"","CODE":"ActionNotExist","MESSAGE":"API action does not exist!"}

这样看可能是连通性问题，如果无法连接到美国节点，可以手动加一条host绑定国内授权服务器的IP，命令如下：

echo -e "118.178.173.228\tlicense.appnode.com" >> /etc/hosts

运行上面的命令后，重启下控制中心和受控端：

appnode ccenter restart
appnode agent restart