Alpine: LDAP searches hang

I just configured my ldap server in Alpine, but every search hangs indefinitely (or so it seems) and I have to end up killing Alpine and starting back up. The LDAP server runs over SSL on port 636, so I have specified port 636, but there doesn't seem to be an SSL option available so I turned on "require-tls-on-connection".

I'm likely doing something wrong, I just don't know what. I've googled and come up with nothing.