Question Plesk web deploy link not working

[MICAH]

i downloaded the web deploy publishing settings from my Plesk account. The Web Deploy checkbox is enabled. However, the web deploy failed when i imported the web deploy settings into Visual Studio. It gave the error "the underlying connection was closed. An unexpected error occurred on a send". I went ahead and extracted the publishUrl variable and placed in a browser and it says "Secure Connection Failed". In the past, when webdeploy was working, i would be prompted to enter a user name and password if i entered the publishUrl variable in the browser.
Kindly assist us and review the link. Thanks