Sorry for my poor english.
Our company use Wowza Streaming Engine 4.7.3 on aws for 6 mouth and it work fine.
But last week, after we update it to 4.8.5 , We get “Wowza Streaming Engine Manager could not connect to the Wowza Streaming Engine service(http://localhost:8087). Verify that the Wowza Streaming Engine service has started and is running.” in everyday.
If run "service WowzaStreamingEngine restart " , Wowza Streaming Engine service go back work and work fine.
But in the next day , it will failed again.
After read the log in /logs and /manager/logs , We still don’t know the reason . It seem the service failed suddenly.