Backend rejected the challenge response -1

Warhammer: Vermintide 2 Technical Support
1

Issue Type (Required):

Error - Backend Error

Issue Description (Required):

Whenever i finish a mission and is on the portal to return. I get this error with Quit button.

[PC] Do You Use Mods? (Optional):

No, I don’t use mods

Reproduction Rate (Required):

Constant (100%)

Platform (Required):

Steam (PC)

Player ID (Optional):

Upload Supporting Evidence (Optional):

Untitled.png
Untitled.png840×478 257 KB

[PC] Upload Console Log & vermintide2_launcher.log (Optional):

console-2025-08-31-12.30.46-0160c74e-5374-4ddf-b506-c20b622f1587.log (393 KB)

2

Got this issue too a while ago after completing the event. Only happened once.

3

Sorry to hear this. If the issue isn’t temporary and persists, I recommend running through possible solutions here:

https://support.fatshark.se/hc/en-us/articles/360033298334--PC-Observing-a-BACKEND-REJECTED-THE-CHALLENGE-RESPONSE-Error-OR-Unable-to-Connect-to-Others-Craft-or-Open-Spoils-of-War

4

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