I've got a printer with a Fiery running 8e Release 2. I can authenticate users against AD using the LDAP configuration, but I can only get it to work if I don't use SSL/TLS, and only if I use SIMPLE authentication. Right now, it's authenticating using a fairly low-impact user, but it's also the only system on our network that's not using LDAPS.

I can get AD info fine over LDAPS using ldp.exe from my machine, our firewall, our mail filter, our linux boxes, etc. The only problem child is the Fiery.

I've added the LDAP server certificate as a trusted cert to the Fiery, but after I check the box for Secure Communication and change the port to 636, pressing Validate results in a dialog box coming up saying: LDAP Validation Failed Server Name invalid or server is unavailable.

I've tried changing the server name to use just the name, the FQDN, and the IP address, and changed it to another server, just to see if it was just this AD server that was fussy with the Fiery.

EDIT: removed LDP output, added packet capture analysis from wireshark: The conversation seems pretty normal to me, up to the point where the Fiery terminates the connection after the server sends back a handshake response. Maybe they messed up their TLS implementation? I'm trying support, but it's been fairly useless so far. The cert is a SHA-2 (sha256RSA) 2048-bit certificate. Also, it looks like the Fiery is specifying TLS 1.0. Looking at http://msdn.microsoft.com/en-us/library/windows/desktop/aa374757(v=vs.85).aspx, I'm not seeing SHA256 and TLS 1.0 combination being supported by SChannel. headdesk perhaps that's why, after the DC changes the cipher spec, the connection is terminated by the Fiery? TLS 1.1 and 1.2 are enabled on the DC.

Wireshark conversation: DC: 172.17.2.22, Fiery: 172.17.2.42

No. Time    Source  Source Port Destination Destination Port    Protocol    Length  Info
1   0.000000000 172.17.2.42 48633   172.17.2.22 ldaps   TCP 74  48633 > ldaps [SYN] Seq=0 Win=5840 Len=0 MSS=1460 SACK_PERM=1 TSval=3101761 TSecr=0 WS=4
2   0.000182000 Dell_5e:94:e3       Broadcast       ARP 60  Who has 172.17.2.42?  Tell 172.17.2.22
3   0.000369000 TyanComp_c9:0f:90       Dell_5e:94:e3       ARP 60  172.17.2.42 is at 00:e0:81:c9:0f:90
4   0.000370000 172.17.2.22 ldaps   172.17.2.42 48633   TCP 74  ldaps > 48633 [SYN, ACK] Seq=0 Ack=1 Win=8192 Len=0 MSS=1460 WS=256 SACK_PERM=1 TSval=67970573 TSecr=3101761
5   0.000548000 172.17.2.42 48633   172.17.2.22 ldaps   TCP 66  48633 > ldaps [ACK] Seq=1 Ack=1 Win=5840 Len=0 TSval=3101761 TSecr=67970573
6   0.001000000 172.17.2.42 48633   172.17.2.22 ldaps   TLSv1   147 Client Hello
7   0.001326000 172.17.2.22 ldaps   172.17.2.42 48633   TCP 1514    [TCP segment of a reassembled PDU]
8   0.001513000 172.17.2.22 ldaps   172.17.2.42 48633   TCP 1514    [TCP segment of a reassembled PDU]
9   0.001515000 172.17.2.42 48633   172.17.2.22 ldaps   TCP 66  48633 > ldaps [ACK] Seq=82 Ack=1449 Win=8736 Len=0 TSval=3101761 TSecr=67970573
10  0.001516000 172.17.2.42 48633   172.17.2.22 ldaps   TCP 66  48633 > ldaps [ACK] Seq=82 Ack=2897 Win=11632 Len=0 TSval=3101761 TSecr=67970573
11  0.001732000 172.17.2.22 ldaps   172.17.2.42 48633   TCP 1514    [TCP segment of a reassembled PDU]
12  0.001737000 172.17.2.22 ldaps   172.17.2.42 48633   TLSv1   1243    Server Hello, Certificate, Certificate Request, Server Hello Done
13  0.001738000 172.17.2.42 48633   172.17.2.22 ldaps   TCP 66  48633 > ldaps [ACK] Seq=82 Ack=4345 Win=14528 Len=0 TSval=3101761 TSecr=67970573
14  0.001739000 172.17.2.42 48633   172.17.2.22 ldaps   TCP 66  48633 > ldaps [ACK] Seq=82 Ack=5522 Win=17424 Len=0 TSval=3101761 TSecr=67970573
15  0.002906000 172.17.2.42 48633   172.17.2.22 ldaps   TLSv1   78  Certificate
16  0.004155000 172.17.2.42 48633   172.17.2.22 ldaps   TLSv1   333 Client Key Exchange
17  0.004338000 172.17.2.22 ldaps   172.17.2.42 48633   TCP 66  ldaps > 48633 [ACK] Seq=5522 Ack=361 Win=66304 Len=0 TSval=67970573 TSecr=3101762
18  0.004338000 172.17.2.42 48633   172.17.2.22 ldaps   TLSv1   72  Change Cipher Spec
19  0.005481000 172.17.2.42 48633   172.17.2.22 ldaps   TLSv1   327 Encrypted Handshake Message
20  0.005645000 172.17.2.22 ldaps   172.17.2.42 48633   TCP 66  ldaps > 48633 [ACK] Seq=5522 Ack=628 Win=66048 Len=0 TSval=67970574 TSecr=3101762
21  0.010247000 172.17.2.22 ldaps   172.17.2.42 48633   TLSv1   125 Change Cipher Spec, Encrypted Handshake Message
22  0.016451000 172.17.2.42 48633   172.17.2.22 ldaps   TCP 66  48633 > ldaps [FIN, ACK] Seq=628 Ack=5581 Win=17424 Len=0 TSval=3101765 TSecr=67970574
23  0.016630000 172.17.2.22 ldaps   172.17.2.42 48633   TCP 66  ldaps > 48633 [ACK] Seq=5581 Ack=629 Win=66048 Len=0 TSval=67970575 TSecr=3101765
24  0.016811000 172.17.2.22 ldaps   172.17.2.42 48633   TCP 60  ldaps > 48633 [RST, ACK] Seq=5581 Ack=629 Win=0 Len=0