# go: github.com/foo/bar@v0.0.0: read tcp 192.168.1.1:443: i/o timeout

- **ID:** `go/proxy-timeout`
- **Domain:** go
- **Category:** network_error
- **Verification:** ai_generated
- **Fix Rate:** 80%

## Root Cause

Network connection timeout to the Go module proxy, possibly due to proxy unavailability or firewall.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| 1.16 | active | — | — |
| 1.17 | active | — | — |

## Workarounds

1. **设置GOPROXY为direct绕过代理** (80% success)
   ```
   export GOPROXY=direct
go mod download
   ```
2. **使用国内镜像代理** (70% success)
   ```
   export GOPROXY=https://goproxy.cn,direct
go mod download
   ```

## Dead Ends

- **增加超时时间** — 如果网络根本不通，增加超时只会延迟失败。 (90% fail)
- **重试多次** — 临时网络问题可能恢复，但持续超时表明配置问题。 (50% fail)