Hi Shane Thank you for your reply. All the high ports seem to be working, the issue is port 80 somehow   for example i am able to run a website on port 443 (or 400000) with no issues. The problem is that lets encrypt (and others like that) uses reverse DNS and port 80 to re-issue certificates. without port 80 avalible the certificate renewal will fail. - and no you can't use another port for that -   the strange thing is this was working extremly well for many many months, it only the last renewal cycle (certs get renewed every 6 months)  it failed   hence my question is there a recent change from TPG in blocking that port? every other port seem to working fine       ... View more