"LoginContext key cookie was not present in request" with particular SP

[Cantor, Scott]

On 6/26/13 6:58 PM, "Ian Rifkin" <irifkin at brandeis.edu> wrote:
>
>I am fairly new to hosting a Shibboleth IdP, but have it up and running.
>It works with
>testshib.org <http://testshib.org> and with about 1/2 dozen third-party
>SPs.

Is it clustered?

>I am attempting to set it up with a new SP, but get a generic "Error
>Message: Error decoding Shibboleth SSO request" in the Web browser. In
>turned up log levels and I see things like "LoginContext key cookie was
>not present in request" and "No providerId parameter
> given" and concludes with "No relying party, nothing to display".

https://wiki.shibboleth.net/confluence/display/SHIB2/IdPCookieUsage

Unless you have a non-sticky cluster, your browser isn't sending back the
appropriate cookie during the process.

>I am not sure if this is a problem on my end or on my vendor's end with
>their SP.

It's your end, unless they are sending the request to the wrong endpoint.
That seems a likely possibility.

-- Scott