I use the eresources a lot, including the SMH and Age. I've had no trouble accessing them. Perhaps it's your system? I use a Linux operating system (fedora) and firefox as a browser.
Just checked, and all working as usual. I do get this message "You’ve enabled HTTPS-Only Mode for enhanced security, and a HTTPS version of archives.smh.com.au.rp.nla.gov.au is not available." but then continue to the site anyway and it works fine.