Hi Kai,
I've been looking into this, and from what I've found, this issue happens because IGC (Instant Config) currently supports only up to firmware 8.11.2.
If the APs are already running 8.12.0.0, Central will show an "IGC configuration error" and won't accept any changes.
At the moment the only options are:
- Downgrade the APs back to 8.11.x, or
- Wait until IGC adds support for 8.12, or
- Use UI/template-based configuration instead of IGC.
Hope this helps,
Nahia
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