If it is as simple as a permission issue, check out environment the CA pem file to some thing fewer restrictive like so: I bumped into an analogous difficulty on Mac OSX in the corporation/company community. If you don't know the proxy URL Get it from your organization's network administrator https://iam99720852.wizzardsblog.com/29205219/how-much-you-need-to-expect-you-ll-pay-for-a-good-iam997