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Fixed in 3.18.0-beta.1
Votes
0
Found in
3.16.2
Issue ID
UUM-136996
Regression
Yes
Downloads fail with ETIMEDOUT when using proxy environment variables
Steps to reproduce:
1. Set up environment with HTTP proxy (e.g., corporate proxy)
2. Configure proxy environment variables: HTTP_PROXY=http://proxy.example.com:8080 and HTTPS_PROXY=http://proxy.example.com:8080
3. Enable proxy auto-config in services-config.json: \{"enableProxyAutoconfig": true}
4. Open Hub
5. Attempt to install Unity Editor or Android Build Support module
Expected result: Download succeeds
Actual result: Download fails
Reproducible with: 3.16.2
Not reproducible with: 3.14.5
Reproducible on: Windows 11
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ROBYER1
May 12, 2026 13:39
Still getting this error when installing android modules over Corporate Proxy with Unity Hub public release v3.18
""timestamp":"2026-04-01T15:01:58.546Z","level":"error","moduleName":"AmplitudeExperimentService","pid":26752,"message":"Error fetching feature flags Error: Failed to establish a socket connection to proxies: ..."