Ok he it goes and sorry for my bad english.
I have a development machine (my pc with W7, runing visual studio 2013 and IIS 7.5). The problem i'm having is that only one out of 5 certificates works on it. All certificates work on research, test and production servers (Server 2008 R2 with IIS7.5).
The problem is that all the certificates are issued from local (slovenian) CA's. I installed the same CA's in local machine/trusted root certification authorities and in my personal/trusted root certification authorities (current user). The same procedure was used on the servers and the servers work.
Anyone have an idea what might be wrong (i even reinstalled my development machine) and i had no luck. Well i instaled a identical (w7 and IIS 7.5 without updates and VS2013) virtual machine and for some reason there it works.
thank you for replay
Tomaz