Something similar occurred at a previous employer. They were counting on the admin port being blocked on the firewall. This was 15 years ago but even nowadays n

Something similar occurred at a previous employer. They were counting on the admin port being blocked on the firewall. This was 15 years ago but even nowadays network guys tend to manage firewalls with spreadsheets and manual updates rather than something like Chef so it’s unsurprising that it got missed or overwritten in an upgrade or something.