Connector to another feed on the same ProGet instance fails with 401 after Upgrading ProGet from 4.7.4 to 4.8.4

Hello,

today I upgraded our ProGet instance to 4.8.4. After Upgrading, the Feeds that have connectors to other internal Feeds are failing with the following Message:

There was an error with a connector: The remote server returned an error: (401) Unauthorized.

The connectors are healthy and if I follow the hyperlink in the "Manage Feed" Dialog everyhing works fine. Did you change anything in the Proxy Handling?

Befor the Upgrade everything worked fine.

Thanks for your help.

Product: BuildMaster
Version: 5.8.0

I don't think there were any changes that would have caused that:

http://inedo.com/proget/versions

You'll need dto attach a proxy server between ProGet and the outside internet to see if you can identify where the 401 is coming from.

The Problem is an Authorization Problem within the local ProGet Service. The error is only occuring with Connectors that refer to the same ProGet Instance with different Feeds. It seems, that the 4.8.4 Version does not send the UserName and Password correctly to itself!

We identified a cause of this, and it was fixed in PG-1121 in ProGet 4.8.6