Failure of Mirroring from mirror to disk using oc mirror plugin : i/o timeout

Issue

• To install OpenShift cluster in a fully disconnected environment, we installed a mirror registry.
• Since the mirror registry is in a fully disconnected environment, we first mirror the imageset to disk using the oc mirror command plugin on the Internet-connected host, according to the documentation.
• However, running the mirror to disk failed. imageset-config.yaml and the log output are as follows:

# imageset-config.yaml

kind: ImageSetConfiguration
apiVersion: mirror.openshift.io/v1alpha2
storageConfig:
  registry:
    imageURL: mirror.hogehoge.com:8443/mirror/oc-mirror-metadata
    skipTLS: true
mirror:
  platform:
    channels:
      - name: stable-4.11
  operators:
  - catalog: registry.redhat.io/redhat/redhat-operator-index:v4.11
    packages:
    - name: elasticsearch-operator
      channels:
      - name: stable
    - name: loki-operator
      channels:
      - name: stable
    - name: cluster-logging
      channels:
      - name: stable
    - name: local-storage-operator
      channels:
      - name: stable

# executed oc mirror command plugin and output log

$ oc mirror --config=./imageset-config.yaml file:///home/dev/data
Found: /home/dev/data/oc-mirror-workspace/src/publish
Found: /home/dev/data/oc-mirror-workspace/src/v2
Found: /home/dev/data/oc-mirror-workspace/src/charts
Found: /home/dev/data/oc-mirror-workspace/src/release-signatures
error: Get "https://mirror.hogehoge.com:8443/v2/": dial tcp 192.168.XXX.YYY:8443: connect: i/o timeout; Get "http://mirror.hogehoge.com:8443/v2/": dial tcp 192.168.XXX.YYY:8443: connect: i/o timeout