Ian Young wrote: > > Try going to each of these SPs in turn: > > https://target.iay.org.uk/secure/printenv.cgi > > https://sh2testsp1.iay.org.uk/secure/printenv.cgi > > Note down the exact time of each access, let me know and I'll check the > logs for you to see if anything obvious is happening. > Sorry to butt in on this thread, but I idly tried this two URLs with our production IdP, and was surprised to see it fail on the first one. It's a metadata lookup failure to the IdP with ID https://idp.warwick.ac.uk/idp/shibboleth. Would you be able to see what the specific error was? Nick