For some reason my computer could not connect to any network share on the DL4100 and it looked like it was not going into power-save mode. Was not doing anything to it, the issue just happened,
I rebooted the DL4100 and that didn’t cure the issue.
I then imported the latest configuration backup I had exported from the NAS and that sorted out the issue.
I think it has and I caught evidence of it.
Within log.smbd -
[2015/10/23 17:48:28.665297, 3] ../lib/util/util_net.c:78(interpret_string_addr_internal)
interpret_string_addr_internal: getaddrinfo failed for name ZEUS (flags 34) [Unknown host]
[2015/10/23 17:48:28.665393, 3] lib/util_sock.c:1363(get_mydnsfullname)
get_mydnsfullname: getaddrinfo failed for name ZEUS [Unknown server error]
[2015/10/23 17:48:28.681271, 3] ../lib/util/util_net.c:78(interpret_string_addr_internal)
interpret_string_addr_internal: getaddrinfo failed for name ZEUS (flags 34) [Unknown host]
[2015/10/23 17:48:28.681322, 3] lib/util_sock.c:1363(get_mydnsfullname)
get_mydnsfullname: getaddrinfo failed for name ZEUS [Unknown server error]
[2015/10/23 17:48:28.681432, 3] ../auth/gensec/gensec_start.c:868(gensec_register)
GENSEC backend 'spnego' registered
[2015/10/23 17:48:28.681482, 3] ../auth/gensec/gensec_start.c:868(gensec_register)
GENSEC backend 'ntlmssp' registered
[2015/10/23 17:48:28.681731, 3] smbd/negprot.c:668(reply_negprot)
Selected protocol SMB 2.???
[2015/10/23 17:48:28.684108, 3] smbd/smb2_negprot.c:243(smbd_smb2_request_process_negprot)
Selected protocol SMB3_00
[2015/10/23 17:48:28.700880, 3] ../lib/util/util_net.c:78(interpret_string_addr_internal)
interpret_string_addr_internal: getaddrinfo failed for name ZEUS (flags 34) [Unknown host]
[2015/10/23 17:48:28.700932, 3] lib/util_sock.c:1363(get_mydnsfullname)
get_mydnsfullname: getaddrinfo failed for name ZEUS [Unknown server error]
[2015/10/23 17:48:28.717376, 3] ../lib/util/util_net.c:78(interpret_string_addr_internal)
interpret_string_addr_internal: getaddrinfo failed for name ZEUS (flags 34) [Unknown host]
[2015/10/23 17:48:28.717427, 3] lib/util_sock.c:1363(get_mydnsfullname)
get_mydnsfullname: getaddrinfo failed for name ZEUS [Unknown server error]
[2015/10/23 17:48:28.736810, 3] ../lib/util/util_net.c:78(interpret_string_addr_internal)
interpret_string_addr_internal: getaddrinfo failed for name ZEUS (flags 34) [Unknown host]
[2015/10/23 17:48:28.736871, 3] lib/util_sock.c:1363(get_mydnsfullname)
get_mydnsfullname: getaddrinfo failed for name ZEUS [Unknown server error]
[2015/10/23 17:48:28.753015, 3] ../lib/util/util_net.c:78(interpret_string_addr_internal)
interpret_string_addr_internal: getaddrinfo failed for name ZEUS (flags 34) [Unknown host]
[2015/10/23 17:48:28.753068, 3] lib/util_sock.c:1363(get_mydnsfullname)
get_mydnsfullname: getaddrinfo failed for name ZEUS [Unknown server error]
My method is not exactly a cure. More of preparation for the fault and recovering the NAS from a software malfunction.