Hi all,

I noticed today some weird errors when I tried to refresh a basic php page (phpinfo() function).
The page loads fine when I click refresh several times, then all of the sudden I get a dead page, no 404, no Nginx error, nothing. It looks like someone disconnected the network cable for a fraction of second. I checked both php and nginx logs, nothing is there. I even enabled the debug mode to be safe.

I have a very basic configuration:

upstream fastcgi {
server 192.168.0.2:9000;
server 192.168.0.3:9000 weight=5;
server 192.168.0.10:9000 weight=5;
}

location / {
try_files $uri $uri/ /index.php;
}

location ~ \.php$ {
fastcgi_pass fastcgi;
include fastcgi.conf;
}

Do you know what could generate this issue? The site is closed now so only 2-3 people have access to the setup.
Do you recommend any tools or settings that will allow me to verify if the network is shaky?