Hi, I am trying to connect one of our Win2K8 r2 ADC on LDAPS through LDP.exe but it’s not getting connected & showing schannel event ID 36888 with below errors in ADC events. The following fatal alert was generated: 80. The internal error state is 1101. The following fatal alert was generated: 80. The internal error state is 1250. I have generated a certificate from local CA with key usages as Server Authentication (18.104.22.168.22.214.171.124.1) & Subject CN as fqdn of ADC & installed this certificate under Certificates-NTDS\Personal-Certificates Service (Active Directory Domain Services) & it has a private key as well. Under Computer Certificate personal store, have 3 certificates. First is issued by Root CA for Client Authentication, Sever authentication. Second generated from local CA for RDP TLS connection & 3rd for LDAPS connection. Even I am not able to connect on LDAPS locally from LDP on this ADC. In netstat its showing listening on port 636 but when I check port 636 status through TestSSLServer, showing “No SSL/TLS server at IP”. Have SSLv3 & couple of RC4 Ciphers disabled on this ADC. Is there anything wrong with Server Ciphers. Do I need to install same cert which have used under NTDS on the client from where trying LDP. Kindly suggest what could be the problem & how to fix it. Appreciate any help. Dhiraj
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