# Nginx upstream timed out (110: Connection timed out)

**URL:** <https://meta.discourse.org/t/nginx-upstream-timed-out-110-connection-timed-out/196403>\
**Category:** Self-hosting\
**Created:** [July 8, 2021, 9:11am UTC](https://meta.discourse.org/t/nginx-upstream-timed-out-110-connection-timed-out/196403 "2021-07-08T09:11:08Z")\
**Posts on this page:** 1\
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**Author:** ![X\_Code](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/x_code/32/148529_2.png) [@X\_Code](https://meta.discourse.org/u/X_Code)\
**Post date:** [July 8, 2021, 9:11am UTC](https://meta.discourse.org/t/nginx-upstream-timed-out-110-connection-timed-out/196403/1 "2021-07-08T09:11:08Z")

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Hi my site is [https://1o24bbs.com/](https://1o24bbs.com/)

No upgrade no operation, out of nowhere nginx shows it fails to connect to upstream: [http://127.0.0.1:3000](http://127.0.0.1:3000)

How do I trouble shoot it? Appreciate the help

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