I use claymore v11.6 via HiveOS few days ago start problems with loop reload miner/reboot rigs.
=== Last 50 lines of /var/log/miner/claymore/lastrun_reboot.log ===
11:55:12:389 27fff700 recv: 51
11:55:12:389 27fff700 srv pck: 50
11:55:12:393 27fff700 srv bs: 0
11:55:12:393 27fff700 sent: 222
11:55:13:203 35ff3700 ETH: Stratum - Cannot connect to us1.ethpool.org:3333
11:55:13:203 35ff3700 DevFee: ETH: Stratum - Failed to connect, retry in 20 sec...
11:55:14:451 367f4700 ETH: checking pool connection...
11:55:14:451 367f4700 sent: {"worker": "", "jsonrpc": "2.0", "params": [], "id": 3, "method": "eth_getWork"}
11:55:14:547 367f4700 buf: {"id":3,"jsonrpc":"2.0","result":["0x4dde1d47fc63b923c439f22ada15844445b652afb137256fe6b983b53b059789","0x38d7e4b9c575aa9a9da222b486ac059e7cfa04c61fb1dd58c432b72ce19ff04c","0x0112e0be826d694b2e62d01511f12a6061fbaec8bc02357593e70e52ba","0x531207"]}
11:55:17:391 27fff700 srv_thr cnt: 1, IP: 192.168.1.100
11:55:17:391 27fff700 recv: 51
11:55:17:391 27fff700 srv pck: 50
11:55:17:396 27fff700 srv bs: 0
11:55:17:396 27fff700 sent: 222
11:55:17:675 27fff700 srv_thr cnt: 1, IP: 127.0.0.1
11:55:17:675 27fff700 recv: 51
11:55:17:675 27fff700 srv pck: 50
11:55:17:677 27fff700 srv bs: 0
11:55:17:677 27fff700 sent: 222
11:55:19:464 367f4700 buf: {"id":0,"jsonrpc":"2.0","result":["0x6b17e810f82f14fd1b7360a79cf194023f3f6c74b166ac551a75da63ff4be55a","0x38d7e4b9c575aa9a9da222b486ac059e7cfa04c61fb1dd58c432b72ce19ff04c","0x0112e0be826d694b2e62d01511f12a6061fbaec8bc02357593e70e52ba","0x531208"]}
11:55:19:464 367f4700 ETH: 04/15/18-11:55:19 - New job from eu1.ethermine.org:4444
11:55:19:464 367f4700 target: 0x0000000112e0be82 (diff: 4000MH), epoch 181(2.41GB)
11:55:19:464 367f4700 ETH - Total Speed: 89.491 Mh/s, Total Shares: 100, Rejected: 0, Time: 01:18
11:55:19:464 367f4700 ETH: GPU0 15.042 Mh/s, GPU1 15.013 Mh/s, GPU2 14.984 Mh/s, GPU3 15.025 Mh/s, GPU4 14.723 Mh/s, GPU5 14.704 Mh/s
11:55:21:738 367f4700 sent: {"id":6,"jsonrpc":"2.0","method":"eth_submitHashrate","params":["0x553eb06", "0x000000000000000000000000000000000000000000000000000000002ae46561"]}
11:55:21:833 367f4700 buf: {"id":6,"jsonrpc":"2.0","result":true}
11:55:22:400 27fff700 srv_thr cnt: 1, IP: 192.168.1.100
11:55:22:402 27fff700 recv: 51
11:55:22:402 27fff700 srv pck: 50
11:55:22:405 27fff700 srv bs: 0
11:55:22:405 27fff700 sent: 222
11:55:24:452 367f4700 ETH: checking pool connection...
11:55:24:452 367f4700 sent: {"worker": "", "jsonrpc": "2.0", "params": [], "id": 3, "method": "eth_getWork"}
11:55:24:548 367f4700 buf: {"id":3,"jsonrpc":"2.0","result":["0x6b17e810f82f14fd1b7360a79cf194023f3f6c74b166ac551a75da63ff4be55a","0x38d7e4b9c575aa9a9da222b486ac059e7cfa04c61fb1dd58c432b72ce19ff04c","0x0112e0be826d694b2e62d01511f12a6061fbaec8bc02357593e70e52ba","0x531208"]}
11:55:27:406 27fff700 srv_thr cnt: 1, IP: 192.168.1.100
11:55:27:406 27fff700 recv: 51
11:55:27:406 27fff700 srv pck: 50
11:55:27:409 27fff700 srv bs: 0
11:55:27:409 27fff700 sent: 222
11:55:27:838 9ab64700 watchdog - fminer thread hangs
11:55:27:839 9ab64700 em hbt: 1, fm hbt: 145471,
11:55:27:839 9ab64700 Miner thread hangs, need to restart miner!
11:55:27:839 9ab64700 Rebooting