Category Archives: Troubleshooting

Topics relating to diagnostics, tracing, debugging and error identification can be found here.

LDAPS – The server is not operational

What is LDAPS? LDAP stands for Lightweight Directory Access Protocol. It is the protocol used to talk to Active Directory (AD). Some people confuse to two and refer to AD as LDAP. LDAPS is the LDAP protocol but with security similar to HTTP and HTTPS. an SSL certificate is used to encrypt the traffic flowing… Read More »

unable to check revocation

The revocation function was unable to check revocation .. huh? The error ‘The revocation function was unable to check revocation because the revocation server was offline.’ is raised when an application is trying to check if the provided certificate is valid but it is unable to connect to the revocation server.

The authentication schemes configured on the host (‘IntegratedWindowsAuthentication’)

The authentication schemes configured on the host (‘IntegratedWindowsAuthentication’) do not allow those configured on the binding ‘WS2007HttpBinding’ (‘Anonymous’).  Please ensure that the SecurityMode is set to Transport or TransportCredentialOnly.  Additionally, this may be resolved by changing the authentication schemes for this application through the IIS management tool, through the ServiceHost.Authentication.AuthenticationSchemes property, in the application configuration… Read More »

Could not load file or assembly ‘Owin

First day of trying the understand OWIN, I follow the steps from the microsoft site and are greeted by this error message. Could not load file or assembly ‘Owin, Version=1.0.0.0, Culture=neutral, PublicKeyToken=f0ebd12fd5e55cc5’ or one of its dependencies. The located assembly’s manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) There are possible… Read More »