Yup. That was it. Thanks!

I also found this related post:
http://stackoverflow.com/questions/10550558/nginx-tcp-websockets-timeout-keepalive-config


Igal Sapir
Lucee Core Developer
Lucee.org http://lucee.org/

On 3/21/2017 2:33 AM, Reinis Rozitis wrote:
>> Any ideas?
>
> Try to increase the proxy_read_timeout.
>
> "By default, the connection will be closed if the proxied server does
> not transmit any data within 60 seconds. This timeout can be increased
> with the proxy_read_timeout directive"
>
> http://nginx.org/en/docs/http/websocket.html
>
>
> rr
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