Unable to access Sysvol DFS Shares on 2008 DC "Not Accessible"

hi everyone, inherited server having problems group policy , possibly dfs.  it simple environment--one windows 2008 server running dc, file sharing, hyper-v (unused) (dc has 1 nic used have 2 until removed virtual nic), iis.

it started group policy not working.  i error 1058:
processing of group policy failed. windows attempted read file \\domainname.loc\sysvol\domainname.loc\policies\{31c6f340-016j-11d2-945f-00c06fb984f9}\gpt.ini domain controller , not successful.

so log our domain controller administrator.  i go explorer , try browse \\domainname.loc.  when browse location, list of of shares on domain controller (5 shares total).  when try double click them, error "not accessible".  "you might not have permissions...contact administrator".

i permission errors when click on of shares while logged dc administrator.  none of shares work.

so open new explorer window , browse \\dcname\.  i see 5 of shares again.  i can access 5 of shares no problems.

when ping dcname, replies server's ip6 address.  when ping domainname.loc, same server's ip4 address.

i'm not familiar dfs, website's advice, ran dfsutil /pktinfo on problematic dc.  0 entries.  not sure if normal.

in terms of server roles, have "file server" installed, none of role services such dfs namespaces, branchcache, etc.

any thoughts on i'm rather stumped.  any advice appreciated.  thanks.

because of obscurity of message, , because of server's relatively simple configuration (as host of other reasons), i've decided wipe clean , rebuild scratch.  it seems particular error uncommon.

Windows Server  >  File Services and Storage