Looking for the right forum here...

I've created new, and modified existing reports and re-posted them. Recently a few have required logins for the first time.

New reports have not required this, and those that did ran without for hours, days, then suddenly required logins. Sometimes a Windows user / password will do. Sometimes rejected.

This is strange. I did not request or set any of this. We don't want logins here. Could it be anything to do with changes to reports (only conditions - I'm looking at data security, and there simply is none). Has the Report Server gone nuts? Sorry Dave

Any ideas?

Thanks