I swapped / upgrade my gateway -- both pi's connected to the new gateway with same SSID no problem and Mainsail was working as expected. I was installing a new display for printer -- when adding the [display] into my config it required a MCU reflash. Prior to doing so I upgraded klipper and moonraker to the latest version, then reflashed MCU. Screen is working, and able to jog printer around through it, but unable to access Mainsail. Researching it seemed like it was ipv6. I have disabled ipv6 on the pi -- no luck. I then disabled ipv6 on my gateway -- still no luck. Any suggestions on next steps to resolve this moonraker / network issue?