Search Issue Tracker

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

Hub App

-

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

Comments (1)

  1. 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: ..."

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.