Macbook air 2020 intel freezing on Sequoia in 2026

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onelove_sam wrote:

Ive tried to run a diagnostic but every time i've ran the diagnostic after the freezing, I get an error message "startup ...-2101D". Im struggling here because Idk how to fix my computer and I need my computer for school. Any ideas or advise?

The Apple Diagnostic error code ...-2101D indicates a connection problem preventing the diagnostic tool from reaching Apple's servers, often due to a weak or complex Wi-Fi network, or router issues, requiring you to check your internet, reset NVRAM/PRAM, or try a different network.

To fix it, connect to a simpler Wi-Fi network or try resetting your Mac's NVRAM (Option+Command+P+R at startup) before re-running diagnostics.