All these actions fail with:

fatal: unable to access 'https://github.com/regan-sarwas/XXX.git/': schannel: next InitializeSecurityContext failed: Unknown error (0x80092012) - The revocation function was unable to check revocation for the certificate.

Details:

I am using GitHubDesktop v1.0.2 on Windows 10 Enterprise (version 1067). My organization (Department of the Interior) is doing TLS inspection (man in the middle attack). The network administrators have configured the system so that the browsers (chrome and IE) trust the enterprise root CA. However for some tools (like python's pip) that use their own bundled certificates, I have a copy of our root CA that I can pass on the command line so that they can work with the TLS proxy. Otherwise I'm quite ignorant on how this works.

Luckily I still have GitHub classic (Chocolate-Covered Yaks (3.3.4.0) 50415df) which works fine doing all the above despite the TLS inspection. I'd love to use the new app, but I lack the knowledge to get around this problem.

BTW, The app is able to list my github repos and update itself from 1.0.1 to 1.02, which presumably happens over https.
BTW2, GitHub Desktop 1.0.2 works fine on my Mac (v10.12.6). Our enterprise root CA is in my keychain.