Hey, thanks for the report. This is a known connection issue. Please try the following:
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Disable HTTP/2 (most common fix):
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Open Cursor Settings with
CMD/CTRL+, -
Search for “HTTP/2”
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Enable “Disable HTTP/2”
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Restart Cursor
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Run network diagnostics:
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Cursor Settings → Network → Run Diagnostics
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Share the results if the issue persists
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This helps most users on networks with partial HTTP/2 support. Reference: Constant connection error