# 8.3 designer unable to open Ignition 8.0.4 GW

**URL:** <https://forum.inductiveautomation.com/t/8-3-designer-unable-to-open-ignition-8-0-4-gw/110509>\
**Category:** Ignition 8.3 Early Access\
**Created:** [September 10, 2025, 8:29am UTC](https://forum.inductiveautomation.com/t/8-3-designer-unable-to-open-ignition-8-0-4-gw/110509 "2025-09-10T08:29:35Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Daniel\_Kearney](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/daniel_kearney/32/79526_2.png) [@Daniel\_Kearney](https://forum.inductiveautomation.com/u/Daniel_Kearney)\
**Post date:** [September 10, 2025, 10:55am UTC](https://forum.inductiveautomation.com/t/8-3-designer-unable-to-open-ignition-8-0-4-gw/110509/2 "2025-09-10T10:55:23Z")

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There is a default signature verification check (set to `MODERATE`) that will prevent launching against gateway versions 8.1.33 and older. You can reconfigure this check in the launcher `.json` files to be `LENIENT/LOOSE` which will allow these “legacy” gateways.

> **[Launchers and Workstation | Ignition User Manual](https://docs.inductiveautomation.com/docs/8.3/launchers-and-workstation#signature-verification)**
>
> Ignition features several launchable runtimes

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