License return request times out always when returning via command line on Windows

Steps to Repro:
1. Open command prompt or terminal
2. Execute the following command to return the license

For Windows
"C:\Program Files\Unity\Editor\Unity.exe" -quit -batchmode -returnlicense

3. Open Unity

Actual Result:
1. The editor still launches with license activated

Expected Result:
1. Unity launches with personal license activated or on opening, Unity launcher asks the user to activate a new license

Environment:
Only on Windows

Occurring with:
2018.3.0a1, 2018.2.0b8, 2018.1.3f1, 2018.1.0b6

Working with:
2018.1.0b5, 2017.4.4f1

License type: Pro