Upgrading a disconnected OCP 4 cluster got stuck with Insights Operator degraded

Issue

• When upgrading an OpenShift Container Platform cluster with Insights Operator degraded, the upgrade will stuck and will not finish properly.
• Insights Operator is degraded in a restricted network OCP cluster.

• The following error is shown in the insights pod:

  insightsclient.go:180] Unable to build a request, possible invalid token: Post "https://cloud.redhat.com/api/ingress/v1/upload": dial tcp: i/o timeout
  

• The Insights Cluster Operator show the following message:

  Message:               Unable to report: unable to build request to connect to Insights server: Post "https://cloud.redhat.com/api/ingress/v1/upload": dial tcp 10.0.0.1:443: i/o timeout