啥问题

## Bug Report - flash.comma.ai

**Device:** comma 3/3X
**Serial:** N/A
**Error:** LOST_CONNECTION
**Step:** CONNECTING
**Last Message:** N/A

**OS:** Windows 10/11
**Sandbox:** None detected
**Browser:** Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36 Edg/146.0.0.0
**URL:** https://flash.comma.ai/
**Time:** 2026-03-23T03:06:22.943Z

Console Logs

```
[2026-03-23T03:06:15.383Z] [info] flash.comma.ai version: d23086e
[2026-03-23T03:06:15.932Z] [info] [ImageManager] Initialized
[2026-03-23T03:06:20.554Z] [error] [Flash] Connection error {}
[2026-03-23T03:06:20.555Z] [debug] [Flash] error 4
```

Start by reproducing the LOST_CONNECTION error at https://flash.comma.ai/ with a comma 3/3X on Windows and compare the reported connection step with the console logs. Trace the connection failure from the reported error and error code 4; done means identifying the cause and confirming that the device can connect successfully.

Written by the indexing model from the issue text.