应用商店升级失败, 失败: Error response from daemon: Get "https://registry-1.docker.io/v2/": net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

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在应用商店里面点选升级, 跑一断之后会显示升级失败, 有人说要改源, 请教如何修改?

失败: Error response from daemon: Get “https://registry-1.docker.io/v2/”: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)

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