The problem is that an update has altered the available cypher suites allowed and there is no longer one supported by your browser.
Does HA include a proxy server such as NGINX or Caddy or Apache web server?
Actually, it is possible that it isn't the HA server but rather a browser update. Though the fact that you've tried from different devices would seem to rule that out.
Maybe checkout the changelogs for HA to see if they closed a security hole by changing the available cyphers.
Sorry, last update 
Check whether they disabled an old version of SSL or TLS as well since that could also be the issue.
