SQL SERVER 2012 Installed to SMB share Error 59 (An unexpected network error occurred)

I have installed SQL 2012 on a clustered file share. When I try to add space to extend the log file for a database I get the following error

Msg 5149, Level 16, State 3, Line 1
MODIFY FILE encountered operating system error 59(An unexpected network error occurred.) while attempting to expand the physical file '\\server\share\path to ldf file.ldf'

The SQL service is running under a local domain account that does not have administrator rights to the system.  The service account does have full disk and share permissions and the service starts without any problems.  I have applied all the cluster hotfixes and all the current Windows Updates.  If I log into the system as the SQL service domain user account I can access the share and have full rights to it.

Any help would be appreciated.

Thanks,