My client app is Silverlight, and the back end is WCF (.Net 4.0).
The app works fine on Windows 7, but after upgrading to Windows 10, it's broken.
I tried using fiddler, the error that comes back from the server is 405 (Method Not Allowed Error (HTTP 405))
I turned on WCF tracing on the server side, but it doesn't log anything. This means that the server is not allowing the client to even talk to it. My guess is that it's an authentication issue. But, the user has been authenticated.
The only snippet of information I could find was this tucked away in the Event Log:
What is going on?
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Event code: 4005
Event message: Forms authentication failed for the request. Reason: The ticket supplied was invalid.
Event time: 8/4/2015 1:33:33 PM
Event time (UTC): 8/4/2015 3:33:33 AM
Event ID: 6ce6e213f2c342dc8c5e3d744f2e69d1
Event sequence: 2
Event occurrence: 1
Event detail code: 50201
Application information:
Application domain: /LM/W3SVC/1/ROOT/DeltaCCC-3-130831328136190227
Trust level: Full
Application Virtual Path: /DeltaCCC
Application Path: C:\inetpub\wwwroot\DeltaCCC\ASP\
Machine name: DESKTOP-L53NR8K
Process information:
Process ID: 1204
Process name: w3wp.exe
Account name: IIS APPPOOL\DefaultAppPool
Request information:
Request URL: http://localhost/deltaccc
Request path: /deltaccc
User host address: ::1
User:
Is authenticated: False
Authentication Type:
Thread account name: IIS APPPOOL\DefaultAppPool
Name to authenticate:
Custom event details: