Solution 1.
yarn install --network-timeout 1000000
Solution 2.
yarn config delete https-proxy
yarn config delete proxy
Debug
yarn install --verbose
My issue was that i forget to add the license key in .yarnrc.yml for Font Awesome Pro.
npmScopes:
  fortawesome:
    npmAlwaysAuth: true
    npmRegistryServer: "https://npm.fontawesome.com/"
    npmAuthToken: "your-token-here"
Zoeken