群晖DSM中部署Docker报错

想请问有人知道如下问题怎么解决嘛,安装好几个Docker都是这个报错。群晖里面挂了代理的,能正常访问到注册表的
redis Error
Error response from daemon: Get “https://registry-1.docker.io/v2/”: context deadline exceeded (Client. Timeout exceeded while awaiting headers) “https://registry-1.docker.io/v2/”: