Windows 11 Quietly Mandates Enterprise Printer Port 9100 Encryption

The Windows Podcast with Fexingo: Microsoft, PC, and Enterprise Windows Conversations · Jul 1, 2026 · 11m · transcript

Episode 85 of The Windows Podcast with Fexingo. Lucas and Luna unpack Microsoft's quiet requirement that enterprise printers using port 9100—the decades-old raw TCP/IP standard—must now use encryption. They trace the change from a July 2025 Windows 11 24H2 preview build to the current July 2026 mandatory security baseline. Lucas explains why this breaks thousands of pre-2020 office printers and how IT admins can prepare, with specific steps for HP and Brother fleet environments. The hosts also discuss the broader pattern: Microsoft is systematically forcing encryption on every legacy…