Issue by enabling LDAP + SSL

Question

Hi!!
I tried to enable LDAPS and for that I created a standalone CA within my network. I made the certificate request as follows:
;----------------- request.inf ----------------- 
[Version] 
Signature="$Windows NT$ 
[NewRequest]
Subject = "CN=PDC.example.local"
KeySpec = 1 
KeyLength = 2048
Exportable = TRUE 
MachineKeySet = TRUE 
SMIME = False 
PrivateKeyArchive = FALSE 
UserProtected = FALSE 
UseExistingKeySet = FALSE 
ProviderName = "Microsoft RSA SChannel Cryptographic Provider" 
ProviderType = 12
RequestType = PKCS10 
KeyUsage = 0xa0 
[EnhancedKeyUsageExtension] 
OID=1.3.6.1.5.5.7.3.1 
I have created a .req file
In the certmgr.msc I have downloaded de certificate chain. I have installed de cert from de standalone CA in Trusted Root Certificates and the cert from my Domain Controler in Personal.
I have reboot the DC but when checking with ldp.exe shows me the following error:
ld = ldap_sslinit ("192.168.1.8", 636, 1);
Error 0 = ldap_set_option (hLdap, LDAP_OPT_PROTOCOL_VERSION, 3);
Error 81 = ldap_connect (hLdap, NULL);
Server error: <empty>
Error <0x51>: Fail to connect to 192.168.1.8.
I followed all manuals and i cannot enable LDAPS, I need Help!! 

Answer 1

It seems the ldap client cannot connect to the dc on port 636
Make sure the port is allowed in firewall(s). Check if it is listening on the dc using netstat -an and check if you can connect to it using telnet <ip> <port>
MCP/MCSA/MCTS/MCITP