someone has a solution to this problem in the rancher catalog.
Remote commit check failed: Repo [https://git.rancher.io/helm3-charts] is not accessible: Get "https://git.rancher.io/repos/helm3-charts/commits/master": context deadline exceeded (Client.Timeout exceeded while awaiting headers)this error occurs when i start rancher with docker for the first time.
sudo docker run -d --name rancher -v /opt/rancher:/var/lib/rancher --restart=unless-stopped -p 80:80 -p 443:443 --privileged rancher/rancher