The HTTP request is unauthorized with client authentication

Question

The HTTP request is unauthorized with client authentication scheme 'Ntlm'. The authentication header received from the server was 'Negotiate,NTLM'
when I am consuming wcf service getting this error.

Mageshwaran R · Answer

Hi, try this code: xml   version = "1.0" ?>    configuration >    connectionStrings >       add   name = "Json_ConnectionString"   connectionString ="Data Source=" ConnectionString " />    connectionStrings >       appSettings >         add   key = "aspnet:UseTaskFriendlySynchronizationContext"   value = "true"   />       appSettings >       system.web >         compilation   debug = "true"   targetFramework = "4.6.1"   />         httpRuntime   targetFramework = "4.6.1" />       system.web >       system.serviceModel >         behaviors >           serviceBehaviors >             behavior   name = "BehaviourName" >                             serviceMetadata   httpGetEnabled = "true"   httpsGetEnabled = "true" />                             serviceDebug   includeExceptionDetailInFaults = "false" />             behavior >           serviceBehaviors >           endpointBehaviors >             behavior   name = "Web" >               webHttp />             behavior >           endpointBehaviors >         behaviors >         services >           service   behaviorConfiguration = "BehaviourName"   name = "Service.Service" >             endpoint     behaviorConfiguration = "Web"   binding = "webHttpBinding"               contract = "Service.IService"   />           service >         services >         protocolMapping >             add   binding = "basicHttpsBinding"   scheme = "https"   />         protocolMapping >             serviceHostingEnvironment   aspNetCompatibilityEnabled = "true"   multipleSiteBindingsEnabled = "true"   />       system.serviceModel >       system.webServer >         modules   runAllManagedModulesForAllRequests = "true" />                 To browse web app root directory during debugging, set the value below to true.           Set to false before deployment to avoid disclosing web app folder information.         -- >         directoryBrowse   enabled = "true" />       system.webServer >       configuration >

Asutosha Sarangi · Answer

Now I am getting  "The provided URI scheme 'https' is invalid; expected 'http'.
Parameter name: via"

Altaf Ansari · Answer

Please refer this:   http://morrisbahrami.blogspot.in/2011/02/http-request-is-unauthorized-with.html