Could not start MFA process

When setting up MFA in Defguard, you may see the following error in the desktop client after entering the code: "Could not start MFA process".

The client debug logs may also show:

Failed to deserialize the JSON body into the target type: code: invalid type: string "005325", expected u32 at line 1 column 268.

This error means one or more components are running an outdated version that is incompatible with the current API contract. Check and update the following:

• Defguard core

• Defguard Edge Component

• Desktop client application

All three must be on compatible versions. Update them to the latest stable releases and retry.

Download links: https://defguard.net/download/