Redirects to /account/signin

[huysentruitw]

In a setup with a PingFederate IdP we're seeing that IdentityServer2 redirects to /account/signin?ReturnUrl=%2fissue%2fwsfed after PingFederate posts back the WS-Fed + SAML assertion data to IdentityServer2. I have no idea where to start looking or what possibly is going wrong, so if anyone can give any pointer on where to start looking, that would be great.

As a side-note, for an other customer we already have a successful setup but, unfortunately, I cannot compare the WS-Fed/SAML data.

[brockallen]

Maybe this? https://brockallen.com/2011/06/01/beware-bin-deployment-of-mvc-and-razor-with-formsauthentication/