Edit Authentication Settings requested for all networked systems

When I try to make the source file for a backup a network drive (mapped to the local system), I get a popup that says "Edit Authentication Settings" and asks for a user name and password. I enter the administrator id for that system and press the "Test Connection" button. I then get an error that it couldn't connect. Note that while this is going on, I have complete RW access to the network drives in an explorer window open at the smae time. There is no access issue as far as windows is concerned.

I have tried this against multiple different systems on my network with the same results. Even against a NAS that has no security on it at all.

After I cancel out, Acronis usually aborts.

This was working fine, but the access issue started around the time of the last update (but I can't state for sure if it was at exactly the same time)

I am using ATI Home 2011 with Plus Pack build 6597