Some workers connections resets every 5min
In console of proxy
[2017-08-13 16:04:59] 146.0 KH/s, shares: 3804/17 +80, upstreams: 11, miners: 1890 (max 1896) **+432/-431**
[2017-08-13 16:05:59] 168.0 KH/s, shares: 3881/17 +77, upstreams: 11, miners: 1890 (max 1896) +0/-0
[2017-08-13 16:06:59] 168.0 KH/s, shares: 3962/17 +81, upstreams: 11, miners: 1890 (max 1896) +0/-0
[2017-08-13 16:07:59] 200.0 KH/s, shares: 4072/17 +110, upstreams: 11, miners: 1890 (max 1896) +7/-7
[2017-08-13 16:08:59] 186.0 KH/s, shares: 4161/17 +89, upstreams: 11, miners: 1888 (max 1896) +0/-2
[2017-08-13 16:09:59] 168.0 KH/s, shares: 4243/17 +82, upstreams: 11, miners: 1888 (max 1896) **+669/-669**
[2017-08-13 16:10:59] 166.0 KH/s, shares: 4327/17 +84, upstreams: 11, miners: 1889 (max 1896) +3/-2
[2017-08-13 16:11:59] 204.0 KH/s, shares: 4433/17 +106, upstreams: 11, miners: 1886 (max 1896) +0/-3
[2017-08-13 16:12:59] 192.0 KH/s, shares: 4527/17 +94, upstreams: 11, miners: 1886 (max 1896) +0/-0
[2017-08-13 16:13:59] 146.0 KH/s, shares: 4602/17 +75, upstreams: 11, miners: 1885 (max 1896) +1/-2
[2017-08-13 16:14:59] 174.0 KH/s, shares: 4682/17 +80, upstreams: 11, miners: 1885 (max 1896) **+425/-425**
[2017-08-13 16:15:59] 160.0 KH/s, shares: 4765/17 +83, upstreams: 11, miners: 1885 (max 1896) +0/-0
[2017-08-13 16:16:59] 206.0 KH/s, shares: 4867/17 +102, upstreams: 11, miners: 1885 (max 1896) +3/-3
[2017-08-13 16:17:59] 162.0 KH/s, shares: 4951/17 +84, upstreams: 11, miners: 1882 (max 1896) +1/-4
[2017-08-13 16:18:59] 178.0 KH/s, shares: 5035/17 +84, upstreams: 11, miners: 1884 (max 1896) +3/-1
[2017-08-13 16:19:59] 162.0 KH/s, shares: 5118/17 +83, upstreams: 11, miners: 1884 (max 1896) **+426/-426**

In miner 
| 2017-08-13 16:29:27 | RECEIVE error: socket closed                           |
| 2017-08-13 16:39:38 | RECEIVE error: socket closed                           |
| 2017-08-13 16:49:48 | RECEIVE error: socket closed                           |
| 2017-08-13 16:59:58 | RECEIVE error: socket closed                           |
| 2017-08-13 17:10:08 | RECEIVE error: socket closed                           |
| 2017-08-13 17:20:19 | RECEIVE error: socket closed                           |

Working direct with pool give no such issue.