[chef] knife winrm browsing network shares

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Has anyone successfully used knife winrm for accessing remote shares?
I can successfully do a:
$ knife winrm -m server.mydomain.local -P 'mypwd' -p 5985 -x
'mydomain\Administrator' dir

but get an "Access is denied" when doing dir \\\\filer\\share

I have followed this doc and the knife winrm doc to setup the client
http://msdn.microsoft.com/en-us/library/windows/desktop/ee309365%28v=vs.85%29.aspx
with no luck.

I see that the NTLM auth is successful on the windows host logs, but it seems
like it's not using the CredSSP correctly. Toggling the CredSSP settings on 
the
windows server has no effect at all.

Any help is appreciated thanks!