looks the settings has been modified heavily from the default one, it may be the cause of various strange behavior.
Max Connections 2000
==>they should match. please change "Max Connections" back to 35
Initial Request Timeout (secs) 400
==>default one is 60. any reason to set so large -- 400?
Connection Keepalive Timeout 0
==>please set a value other than 0: -1, 1, 5, 10 ... etc, or just Not Set it.
Response Buffering Yes
==> set it to default "No"
Max Idle Time 10
==> too small ? increase it or leave it blank.
Memory Soft Limit (bytes) 1200M
Memory Hard Limit (bytes) 1000M
==>soft limit should <= hard limit
Process Soft Limit 1000
Process Hard Limit 800
==>same as above: soft limit should <= hard limit