502 Bad Gateway

[APS_web]

hi,

i have a server with CentOS 6.5 and Parallels Plesk Panel v11.5.30_build115130819.13 os_CentOS 6 installed with clean server.

When i put the activation code in Home>Tools & Settings>License Management i was redirected in "502 Bad Gateway - nginx" and in /var/log/sw-cp-server/error_log was created this line:

2014/01/23 23:29:28 [error] 14947#0: *158 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: XXX.XXX.XXX.XXX, server: , request: "POST /server/key_upload.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/sw-engine.sock:", host: "YYY.YYY.YYY.YYY:8443", referrer: "https://YYY.YYY.YYY.YYY:8443/server/key_upload.php"

i know that is possible to install key by the shell, but i want resolve "Bad Gateway" problem definitively.

 

[InderS]

Hello,

check KB : http://kb.parallels.com/en/118757

 

[APS_web]

hi, thank you for the answer

I already see this KB, but in my server the configuration was already 32k and 64k, i tryed also to set

fastcgi_buffers 128 128k;
fastcgi_buffer_size 256k;

but nothing to do, the problem persist.

 

[Pnia pnia pnia]

I have this problem too.
Plesk Manager (https://play.google.com/store/apps/details?id=com.parallels.panel.manager) doesn't works, bad gateway.