ovirt-engine过后登录9696端口出现/ovirt-engine/sso/oauth/token-info错误

https://172.16.6.20:9696登陆时，返回如下错误：

{
  "error": {
    "message": "HTTPSConnectionPool(host='quanmeo.me', port=443): Max retries exceeded with url: /ovirt-engine/sso/oauth/token-info (Caused by NewConnectionError(': Failed to establish a new connection: [Errno 111] Connection refused',))",
    "code": 502,
    "title": "Bad Gateway"
  }
}