The project won't open if package manager fails to start when the internet connection is poor on Windows

Steps to Repro:
1. Set your system network profile to 100% packet loss or to 750ms delay
2. Open unity launcher
3. Create a new project or open an existing one

Actual Result:
1. Project fails to open and a pop-up error message is displayed,

Note:
1. It requires a network emulator tool, I used "Clumsy" to simulate network conditions
2. Check the attached screenshot and editor .log for the same

Environment:
Only on Windows

Occurring with:
2018.3.0a2, 2018.2.0b9, 2018.1.3f1, 2017.4.1f1

Note: 2017.1.4f1 is failing to start without any error messages please check the attached editor log for it.