Group SID's slow to resolve on Server 2016 (workgroup server, not on a domain)

S

Stel2112

Anytime I go to the security tab on this new Server 2016 machine it takes over 20 seconds for the custom group SID's to resolve to their local names. Usernames, however, resolve almost instantly, as do built-in groups "SYSTEM", "Administrators", "Users". I have noticed that for some people this issue is related to DNS configuration on their AD setup, however this is a simple stand-alone file server that is not part of a domain or a domain controller. The DNS entries for this server for its two NIC's point to the local router.

The same problem also shows up any time I try to add new share permissions as well, basically it seems to happen anytime a permissions list is displayed that has a local group added to the permissions list. This makes it very difficult to change permissions.

Any ideas what might be causing this?

Thanks.

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