IDM 4.5, UA/RRA/HPD/OSP/SSPR are all installed on server 1. (Did not use
integrated installer, installed them one by one).

OSP/SSPR installed on Tomcat on Server 2.

But I do not have the Forgotten Password on the OSP login page.

Going to https://hostort/sspr/public/ForgottenPassword works.

Finally, in on Server 1, on the Authentication tab, I
had set the provider as SSPR, but I had not checked the box below it.

What do I do, on Server 2, the OSP/SSPR only config to enable Forgotten
Password. No configupdate of course on that box.