WCF .net Framework 4.0 to WCF .net Framework 4.6.1 Failed to work

Question

Hello when migrating my WCF project from .net framework 4.0 to .net framework 4.6.1, the client authentication became faulted. Here is the image of the error. What to do? thanks..

Answer 1

I have just fixed the Issue by adding

<runtime>
   <AppContextSwitchOverrides value="Switch.System.IdentityModel.DisableMultipleDNSEntriesInSANCertificate=true" /> 
</runtime>

https://msdn.microsoft.com/en-us/library/mt620030(v=vs.110).aspx