401 error when using yarn with VSTS; works with 0.27.5 and NPM

[SuhairZain]

Do you want to request a feature or report a bug?
Bug

What is the current behavior?
The latest version of yarn fails with 401 error when fetching packages from our private Visual Studio Team Services channel. It works when I fall back to 0.27.5 or when I use npm. The failing package seems to change on each try.

If the current behavior is a bug, please provide the steps to reproduce.

What is the expected behavior?

The following is the console output:

yarn install v1.3.2
[1/5] Resolving packages...
[2/5] Fetching packages...
error An unexpected error occurred: "https://xxxxxx.pkgs.visualstudio.com/_packaging/8cc7db9e-2c6c-4bac-b0e4-14010c159200/npm/registry
/husky/-/husky-0.14.3.tgz: Request failed \"401 Unauthorized\"".
info If you think this is a bug, please open a bug report with the information provided in "C:\\xxxxxx\\xxxxxx-cms\\yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.

The following is the error log: https://pastebin.com/jMaNS55Q

Please mention your node.js, yarn and operating system version.
Node: v8.5.0
Yarn: v1.3.2

[torifat]

Are you using HTTP_PROXY or HTTPS_PROXY env variable?

[SuhairZain]

@torifat I don't have either of them set.

[BYK]

Can this be a duplicate of #4672?

[torifat]

Duplicate of #4672