[Kul]

I downloaded the mentioned version and worked first time. When I try loggin into the app on the BB, I get the following error in the Logs

<2012-02-21 16:17:27.161 GMT>:[1127]:<BBIM_SERVER_1_BBIM_1>:<INFO >:<LAYER = BBIM, DEVICEPIN = 23bf4ed6, USERID = u1, IM server = OCS 2007R2 hosted at OCSPool>
<2012-02-21 16:17:27.161 GMT>:[1128]:<BBIM_SERVER_1_BBIM_1>:<DEBUG>:<LAYER = BBIM, LAYER = BBIM, EVENT = AddSession: u1>
<2012-02-21 16:17:27.161 GMT>:[1129]:<BBIM_SERVER_1_BBIM_1>:<DEBUG>:<LAYER = BBIM, LAYER = BBIM, EVENT = ActiveSessions: 1>
<2012-02-21 16:17:27.161 GMT>:[1130]:<BBIM_SERVER_1_BBIM_1>:<INFO >:<LAYER = BBIM, DEVICEPIN = 23bf4ed6, USERID = u1, SIP URI = sip:my.test@mydomain.net>
<2012-02-21 16:17:27.161 GMT>:[1131]:<BBIM_SERVER_1_BBIM_1>:<INFO >:<LAYER = BBIM, DEVICEPIN = 23bf4ed6, USERID = u1, Account = domain\mytest>
<2012-02-21 16:17:27.145 GMT>:[1123]:<BBIM_SERVER_1_BBIM_1>:<DEBUG>:<LAYER = GME, EVENT = Sent_up, SOURCE = U1, DESTINATION = SXXXXXX, GUID = null, GMETAG = 904163999, CONTENT = BBIM, CONFIRM = FALSE, SIZE = 373>
<2012-02-21 16:17:27.254 GMT>:[1133]:<BBIM_SERVER_1_BBIM_1>:<DEBUG>:<LAYER = BBIM, [BBCS] Registered sip:my.test@mydomain.net>
<2012-02-21 16:17:27.254 GMT>:[1132]:<BBIM_SERVER_1_BBIM_1>:<DEBUG>:<LAYER = BBIM, [OCSC] msRTCSIP-PrimaryUserAddress: sip:my.test@mydomain.net>
<2012-02-21 16:17:27.270 GMT>:[1134]:<BBIM_SERVER_1_BBIM_1>:<WARNG>:<LAYER = BBIM, [OCSC] A User Endpoint for URI: sip:my.test@mydomain.net could NOT be established. RealTimeException msg: The target principal name is incorrect, inner exception: outgoing TLS negotiation failed; HRESULT=-2146893022>

I followed KB24960 to get the TLS Certficate and Colloaboration Service to work fine.

any ideas why I am unable to login ?