Antigravity ECONNREFUSED error, server initialization failure

On first installing Antigravity x64 for Windows, I kept getting spammed with errors. I consulted GPT and Claude, restarted my device (Lenovo ThinkPad X1 Carbon Gen 12), tried reinstalling multiple times, ran programs as administrators, checked if my ports were free, tried different versions of Node.js, granted powershell access (previously restricted), but kept getting the same ECONNREFUSED error. I’ve attached the output seen in Antigravity below.

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