ContributionsMost RecentMost LikesSolutionsReceived fatal alert: certificate_unknown Dear I have the following Scenario one web service A working two-way SSL ,I already create a certificate portecle application. one client B send a request to web service A I already create a certificateOpenSSL and i used SOAPUI to send request. when I try to send a request client B to A it returns following error Received fatal alert: certificate_unknown. when I used the cretificate from particle for A and B it's working !