Error when clicking on Manage Feed

I just installed proget and have started configuring it. I created a feed but when I click on manage feed it throws and error:

Server Error in '/' Application.

The network path was not found

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ComponentModel.Win32Exception: The network path was not found

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

All other functionality thus far seems to work fine (I've create a new user, a new group, and manually uploaded a nuget package to my feed).

Product: ProGet
Version: 4.8.0

I'm a bit of a loss, because we haven't seen such an error before... and it's not something that ProGet would be doing.

You may have some IIS setting enabled, that's intercepting requests and ... doing "something" with them? It's really hard to say, because it simply doesn't make any sense, and the solution will not be found looking in ProGet settings/installation.

Would suggest to use the integrated web server in this case. Or, use a fresh IIS installation.