Hi, I am developping the .NET application running on ENT-IPA environment. We have openned the port 2001 to access VBS on the server intswcapp902 (testing). When trying to run client app on the ENT-IPA machine, it throws me an error:   Error: Failed to communicate with Visma Business Services. Failed to communicate with server. SOAP security negotiation failed. See inner exception for more details. The client and server cannot communicate, because they do not possess a common algorithm at System.IdentityModel.SspiWrapper.AcquireCredentialsHandle(String package, CredentialUse intent, SecureCredential scc) at System.ServiceModel.Security.TlsSspiNegotiation.AcquireDummyCredentials() at System.ServiceModel.Security.TlsSspiNegotiation..ctor(String destination, Boolean isServer, SchProtocols protocolFlags, X509Certificate2 serverCertificate, X509Certificate2 clientCertificate, Boolean clientCertRequired) at System.ServiceModel.Security.TlsnegoTokenProvider.CreateTlsSspiState(X509SecurityToken token) at System.ServiceModel.Security.TlsnegoTokenProvider.CreateNegotiationState(EndpointAddress target, Uri via, TimeSpan timeout) at System.ServiceModel.Security.IssuanceTokenProviderBase`1.DoNegotiation(TimeSpan timeout)   When running same app directly at VBS server, it runs ok. Where could be problem?   I already tried to config the app to use .NET framework 4.8, but didnt help.   Does anybody faced such a issue?   I am struggling here about 5 days... Thanks ... Visa mer