I'm attempting to use VSTS as a private feed for some Nuget packages I have. Feed is setup OK and on a Windows machine I have it pushes correctly - i.e. I copy / paste the command from the VSTS window, put in the right package name and off we go. It prompts for my username / password and the package is uploaded. On a Mac I do the exact same thing without the .exe on the end of Nuget of course, it again prompts for my credentials and then instead of the success I was expecting I get 400 Bad Request. Every single time.
Nothing obviously different here that I can see. No idea what's lacking on the Mac to make it work (I have the latest possible version of nuget for Mac) and I'm lost. Any light you can shed would be much appreciated - thanks.