Registration fails with "Serial number incorrect"

ZT-881afe75

1. System: macOS BigSur
2. Battery or AC: AC
3. Model: RT-AX92U
4. Frequency of occurrence: Always
5. Reset OS: not applicable
6. Screenshot or video: attached screenshot

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Detailed description：I cannot register my RT-AX92U as it always fails with Serial number incorrect message

Blake_ASUS

Hello sebastian,

Please provide the picture of the SN sticker on the router and the box in the PM I send you.

Thank you.