[Nextcloud16] An error occurred while reviewing the server configuration

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In order to help you as quickly as possible, before clicking Create Topic please provide as much of the below as you can. Feel free to use a pastebin service for logs, otherwise either indent short log examples with four spaces:


Or for longer, use three backticks above and below the code snippet:


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Nextcloud version (eg, 12.0.2):16.0.3
Operating system and version (eg, Ubuntu 17.04):Centos 6.10
Apache or nginx version (eg, Apache 2.4.25): nginx 1.16.0
PHP version (eg, 7.1):7.2

The issue you are facing:
" An error occurred while reviewing the server configuration"

Is this the first time you’ve seen this error? (Y/N):N

Steps to replicate it:

  1. click in admin panel
  2. click to check the server configuration
  3. error occur

The output of your Nextcloud log in Admin > Logging:


The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):


The output of your Apache/nginx/system log in /var/log/____:

[error] 19184#19184: *154 upstream timed out (110: Connection timed out) while reading response header from upstream, client:, server: pan.tamabi.de, request: "GET /settings/ajax/checksetup HTTP/1.1", upstream: "fastcgi://", host: "pan.tamabi.de"

I am pretty confuse, the php-fpm shuld work fine or I will not able to click in the website.:thinking:. There is no error on php-fpm log and nextcloud log. Just find this in nginx log.

this error only happen when using this function.