We have one core server on 2016 which I'm trying to get up and running to replace our old box.
When I try to do HII, it tells me I need to configure a preferred server first - fair enough.
If I go to preferred servers, I can put in the credentials of a new user I created and click on test - if I try to test UNC I get 'UNC authentication failed'.
I tried adding the new user I created to the \\servername\packages$ folder permissions but it made no difference.
SO... the question is, when it says UNC authentication failed, what is it trying to authenticate TO?
All the docs I can find just say 'put in credentials and click test' but nothing about giving those credentials any permissions.
Also, I've found IP can sometimes work better then FQDN.
See if this helps: https://help.landesk.com/docs/help/en_US/LDMS/9.6/Default.htm#Windows/rep_c_unc_authentication.htm%3FTocPath%3DDistribut…
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