问题
Last days, I deployed a PHP app(ZF2) on a EC2 instance(Ubuntu Server 12.04).
I installed classic packages for a LAMP environment.
I defined my vhost then I test my website.
The website worked fine and sometimes I have the error :
Network Error (tcp_error) A communication error occurred: ""
I have no error. I checked Apache logs, PHP logs, etc but I found nothing why I have this error something.
When I reload the page, the page works again...
I would like to know if someone already got this case and can give me a way for resolve my issue.
Thanks
来源：https://stackoverflow.com/questions/22125245/network-error-tcp-error-a-communication-error-occurred