4.0 验证码控件报错

内网,设计器连接的服务端,报这个错
ConnectionError: HTTPSConnectionPool(host=‘ai.i-search.com.cn’, port=443): Max retries exceeded with url: /ocr/v2/vCode (Caused by NewConnectionError(‘<urllib3.connection.VerifiedHTTPSConnection object at 0x0D8EA110>: Failed to establish a new connection: [WinError 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond’,))
请问一下是什么原因导致的