Had the miner run for one day, and towards the end it lost connection to the pool and it tried to reconnect over and over again, and after some time it did manage to reconnect, but once it was connected again my hashrate got very low
2018.04.23:10:16:11.290: main Eth speed: 147.276 MH/s, shares: 2643/0/0, time: 20:38
2018.04.23:10:16:11.290: main GPUs: 1: 29.325 MH/s (549) 2: 29.489 MH/s (497) 3: 29.486 MH/s (537) 4: 29.488 MH/s (516) 5: 29.487 MH/s (544)
2018.04.23:10:16:16.368: main Eth speed: 147.435 MH/s, shares: 2643/0/0, time: 20:38
2018.04.23:10:16:16.368: main GPUs: 1: 29.484 MH/s (549) 2: 29.489 MH/s (497) 3: 29.486 MH/s (537) 4: 29.488 MH/s (516) 5: 29.488 MH/s (544)
2018.04.23:10:16:19.759: eths Eth: Send: {"id":5,"jsonrpc":"2.0","method":"eth_getWork","params":[]}
2018.04.23:10:16:19.759: eths Eth: Send: {"id":6,"jsonrpc":"2.0","method":"eth_submitHashrate","params":["0x8c73706","0x930e7ab371861647a7fe1d91f42d4ec0a63adaa7cdb6b1f93bb0c7e7dfdc1d47"]}
2018.04.23:10:16:21.385: eths Eth: Unable to read pool response: The semaphore timeout period has expired
2018.04.23:10:16:21.385: eths Eth: Reconnecting in 20 seconds...
2018.04.23:10:16:24.494: main GPU1: 59C 23%, GPU2: 59C 28%, GPU3: 59C 36%, GPU4: 59C 30%, GPU5: 59C 35%
2018.04.23:10:16:41.390: unkn Eth: Connecting to ethash pool ssl://eu1.ethermine.org:5555 (proto: EthProxy)
2018.04.23:10:16:41.390: unkn Eth: Can't resolve host ssl://eu1.ethermine.org:5555 - No such host is known
2018.04.23:10:16:41.390: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:16:49.076: GPU3 Unable to submit share - pool disconnected
2018.04.23:10:16:52.372: main GPU1: 59C 23%, GPU2: 59C 28%, GPU3: 59C 35%, GPU4: 60C 30%, GPU5: 59C 35%
2018.04.23:10:17:01.407: unkn Eth: Connecting to ethash pool ssl://eu1.ethermine.org:5555 (proto: EthProxy)
2018.04.23:10:17:01.408: unkn Eth: Can't resolve host ssl://eu1.ethermine.org:5555 - No such host is known
2018.04.23:10:17:01.408: unkn Eth: Giving up after 3 retries, switching to next pool
2018.04.23:10:17:01.408: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:17:14.889: GPU5 Unable to submit share - pool disconnected
2018.04.23:10:17:20.407: main GPU1: 59C 23%, GPU2: 59C 29%, GPU3: 59C 35%, GPU4: 59C 30%, GPU5: 59C 36%
2018.04.23:10:17:21.422: unkn Eth: Connecting to ethash pool eu1.ethermine.org:4444 (proto: EthProxy)
2018.04.23:10:17:21.423: unkn Eth: Can't resolve host eu1.ethermine.org:4444 - No such host is known
2018.04.23:10:17:21.423: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:17:23.799: GPU2 Unable to submit share - pool disconnected
2018.04.23:10:17:27.703: GPU3 Unable to submit share - pool disconnected
2018.04.23:10:17:39.574: GPU4 Unable to submit share - pool disconnected
2018.04.23:10:17:41.425: unkn Eth: Connecting to ethash pool eu1.ethermine.org:4444 (proto: EthProxy)
2018.04.23:10:17:41.425: unkn Eth: Can't resolve host eu1.ethermine.org:4444 - No such host is known
2018.04.23:10:17:41.425: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:17:48.472: main GPU1: 59C 22%, GPU2: 59C 28%, GPU3: 59C 35%, GPU4: 59C 31%, GPU5: 59C 36%
2018.04.23:10:18:01.427: unkn Eth: Connecting to ethash pool eu1.ethermine.org:4444 (proto: EthProxy)
2018.04.23:10:18:01.467: GPU4 Unable to submit share - pool disconnected
2018.04.23:10:18:12.459: unkn Eth: Can't resolve host eu1.ethermine.org:4444 - No such host is known
2018.04.23:10:18:12.459: unkn Eth: Giving up after 3 retries, switching to next pool
2018.04.23:10:18:12.459: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:18:16.506: main GPU1: 59C 22%, GPU2: 59C 29%, GPU3: 59C 35%, GPU4: 59C 30%, GPU5: 59C 36%
2018.04.23:10:18:32.461: unkn Eth: Connecting to ethash pool us1.ethermine.org:4444 (proto: EthProxy)
2018.04.23:10:18:43.494: unkn Eth: Can't resolve host us1.ethermine.org:4444 - No such host is known
2018.04.23:10:18:43.494: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:18:44.572: main GPU1: 59C 23%, GPU2: 59C 29%, GPU3: 59C 35%, GPU4: 59C 30%, GPU5: 59C 36%
2018.04.23:10:19:03.496: unkn Eth: Connecting to ethash pool us1.ethermine.org:4444 (proto: EthProxy)
2018.04.23:10:19:12.606: main GPU1: 59C 23%, GPU2: 59C 29%, GPU3: 59C 35%, GPU4: 59C 30%, GPU5: 59C 36%
2018.04.23:10:19:14.528: unkn Eth: Can't resolve host us1.ethermine.org:4444 - No such host is known
2018.04.23:10:19:14.528: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:19:34.530: unkn Eth: Connecting to ethash pool us1.ethermine.org:4444 (proto: EthProxy)
2018.04.23:10:19:37.353: GPU4 Unable to submit share - pool disconnected
2018.04.23:10:19:39.940: GPU2 Unable to submit share - pool disconnected
2018.04.23:10:19:40.671: main GPU1: 59C 23%, GPU2: 59C 29%, GPU3: 59C 35%, GPU4: 59C 30%, GPU5: 59C 36%
2018.04.23:10:19:45.563: unkn Eth: Can't resolve host us1.ethermine.org:4444 - No such host is known
2018.04.23:10:19:47.875: unkn Eth: Giving up after 3 retries, switching to next pool
2018.04.23:10:19:47.875: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:20:07.880: unkn Eth: Connecting to ethash pool ssl://eu1.ethermine.org:5555 (proto: EthProxy)
2018.04.23:10:20:08.706: main GPU1: 48C 19%, GPU2: 48C 25%, GPU3: 49C 30%, GPU4: 49C 27%, GPU5: 49C 32%
2018.04.23:10:20:18.910: unkn Eth: Can't resolve host ssl://eu1.ethermine.org:5555 - No such host is known
2018.04.23:10:20:18.910: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:20:36.568: main GPU1: 45C 0%, GPU2: 44C 19%, GPU3: 44C 24%, GPU4: 45C 21%, GPU5: 45C 26%
2018.04.23:10:20:38.915: unkn Eth: Connecting to ethash pool ssl://eu1.ethermine.org:5555 (proto: EthProxy)
2018.04.23:10:20:38.915: unkn Eth: Can't resolve host ssl://eu1.ethermine.org:5555 - No such host is known
2018.04.23:10:20:38.915: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:20:58.933: unkn Eth: Connecting to ethash pool ssl://eu1.ethermine.org:5555 (proto: EthProxy)
2018.04.23:10:21:04.602: main GPU1: 46C 0%, GPU2: 43C 0%, GPU3: 42C 19%, GPU4: 43C 0%, GPU5: 42C 20%
2018.04.23:10:21:09.962: unkn Eth: Can't resolve host ssl://eu1.ethermine.org:5555 - No such host is known
2018.04.23:10:21:09.962: unkn Eth: Giving up after 3 retries, switching to next pool
2018.04.23:10:21:09.962: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:21:29.965: unkn Eth: Connecting to ethash pool eu1.ethermine.org:4444 (proto: EthProxy)
2018.04.23:10:21:29.965: unkn Eth: Can't resolve host eu1.ethermine.org:4444 - No such host is known
2018.04.23:10:21:29.965: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:21:32.668: main GPU1: 47C 0%, GPU2: 44C 0%, GPU3: 42C 0%, GPU4: 44C 0%, GPU5: 41C 0%
2018.04.23:10:21:49.967: unkn Eth: Connecting to ethash pool eu1.ethermine.org:4444 (proto: EthProxy)
2018.04.23:10:22:00.704: main GPU1: 48C 0%, GPU2: 45C 0%, GPU3: 43C 0%, GPU4: 45C 0%, GPU5: 42C 0%
2018.04.23:10:22:00.999: unkn Eth: Can't resolve host eu1.ethermine.org:4444 - No such host is known
2018.04.23:10:22:00.999: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:22:21.001: unkn Eth: Connecting to ethash pool eu1.ethermine.org:4444 (proto: EthProxy)
2018.04.23:10:22:21.002: unkn Eth: Can't resolve host eu1.ethermine.org:4444 - No such host is known
2018.04.23:10:22:21.002: unkn Eth: Giving up after 3 retries, switching to next pool
2018.04.23:10:22:21.002: unkn Eth: Reconnecting in 20 seconds...
2018.04.23:10:22:28.767: main GPU1: 49C 0%, GPU2: 46C 0%, GPU3: 44C 0%, GPU4: 46C 0%, GPU5: 43C 0%
2018.04.23:10:22:41.003: unkn Eth: Connecting to ethash pool us1.ethermine.org:4444 (proto: EthProxy)
2018.04.23:10:22:48.201: eths Eth: Connected to ethash pool us1.ethermine.org:4444 (18.219.59.155)
2018.04.23:10:22:48.201: eths Eth: Send: {"id":1,"jsonrpc":"2.0","method":"eth_submitLogin","worker":"eth1.0","params":["YourWallet.DESKTOP-RVF2V8O"]}
2018.04.23:10:22:48.330: eths Eth: Received: {"id":999,"jsonrpc": "2.0","result": false,"error": "Invalid user provided"}
2018.04.23:10:22:56.802: main GPU1: 49C 0%, GPU2: 47C 0%, GPU3: 45C 0%, GPU4: 47C 0%, GPU5: 44C 0%
2018.04.23:10:23:24.836: main GPU1: 50C 0%, GPU2: 47C 0%, GPU3: 46C 0%, GPU4: 47C 0%, GPU5: 45C 0%
2018.04.23:10:23:52.698: main GPU1: 50C 0%, GPU2: 48C 0%, GPU3: 47C 0%, GPU4: 48C 0%, GPU5: 46C 0%
2018.04.23:10:24:20.733: main GPU1: 51C 0%, GPU2: 48C 0%, GPU3: 47C 0%, GPU4: 49C 0%, GPU5: 47C 0%
2018.04.23:10:24:28.331: eths Eth: Connection closed by the pool
2018.04.23:10:24:28.331: eths Eth: Reconnecting in 20 seconds...
2018.04.23:10:24:48.338: unkn Eth: Connecting to ethash pool us1.ethermine.org:4444 (proto: EthProxy)
2018.04.23:10:24:48.527: eths Eth: Connected to ethash pool us1.ethermine.org:4444 (18.219.59.155)
2018.04.23:10:24:48.527: eths Eth: Send: {"id":1,"jsonrpc":"2.0","method":"eth_submitLogin","worker":"eth1.0","params":["YourWallet.DESKTOP-RVF2V8O"]}
2018.04.23:10:24:48.657: eths Eth: Received: {"id":999,"jsonrpc": "2.0","result": false,"error": "Invalid user provided"}
2018.04.23:10:24:48.806: main GPU1: 51C 0%, GPU2: 49C 0%, GPU3: 48C 0%, GPU4: 49C 0%, GPU5: 47C 0%
2018.04.23:10:25:16.842: main GPU1: 51C 0%, GPU2: 49C 0%, GPU3: 48C 0%, GPU4: 49C 0%, GPU5: 48C 0%
2018.04.23:10:25:44.909: main GPU1: 52C 0%, GPU2: 49C 0%, GPU3: 49C 0%, GPU4: 49C 0%, GPU5: 49C 0%
2018.04.23:10:26:12.944: main GPU1: 52C 0%, GPU2: 50C 0%, GPU3: 49C 0%, GPU4: 50C 0%, GPU5: 49C 0%
2018.04.23:10:26:28.658: eths Eth: Connection closed by the pool
2018.04.23:10:26:28.658: eths Eth: Reconnecting in 20 seconds...
2018.04.23:10:26:40.809: main GPU1: 52C 0%, GPU2: 50C 0%, GPU3: 49C 0%, GPU4: 50C 0%, GPU5: 49C 0%
2018.04.23:10:26:48.669: unkn Eth: Connecting to ethash pool us1.ethermine.org:4444 (proto: EthProxy)
2018.04.23:10:26:48.850: eths Eth: Connected to ethash pool us1.ethermine.org:4444 (18.219.59.155)
2018.04.23:10:26:48.850: eths Eth: Send: {"id":1,"jsonrpc":"2.0","method":"eth_submitLogin","worker":"eth1.0","params":["YourWallet.DESKTOP-RVF2V8O"]}
2018.04.23:10:26:48.984: eths Eth: Received: {"id":999,"jsonrpc": "2.0","result": false,"error": "Invalid user provided"}
2018.04.23:10:27:08.844: main GPU1: 52C 19%, GPU2: 51C 0%, GPU3: 50C 0%, GPU4: 50C 0%, GPU5: 50C 0%
2018.04.23:10:27:36.912: main GPU1: 46C 17%, GPU2: 51C 0%, GPU3: 50C 0%, GPU4: 50C 0%, GPU5: 50C 0%
2018.04.23:10:28:04.948: main GPU1: 46C 0%, GPU2: 51C 0%, GPU3: 50C 0%, GPU4: 51C 0%, GPU5: 51C 0%
2018.04.23:10:28:28.985: eths Eth: Connection closed by the pool
2018.04.23:10:28:28.985: eths Eth: Giving up after 3 retries, switching to next pool
2018.04.23:10:28:28.985: eths Eth: Reconnecting in 20 seconds...
2018.04.23:10:28:33.015: main GPU1: 46C 0%, GPU2: 51C 0%, GPU3: 50C 0%, GPU4: 51C 0%, GPU5: 50C 0%
2018.04.23:10:28:48.989: unkn Eth: Connecting to ethash pool ssl://eu1.ethermine.org:5555 (proto: EthProxy)
2018.04.23:10:28:49.072: eths Eth: Connected to SSL ethash pool eu1.ethermine.org:5555 (188.165.239.100)
2018.04.23:10:28:49.154: eths Eth: Send: {"id":1,"jsonrpc":"2.0","method":"eth_submitLogin","worker":"eth1.0","params":["0x8c5797Dcf773E84Cc89B21B5A679864b48588c1D.RT01"]}
2018.04.23:10:28:49.194: eths Eth: Received: {"id":1,"jsonrpc":"2.0","result":true}
2018.04.23:10:28:49.194: eths Eth: Send: {"id":5,"jsonrpc":"2.0","method":"eth_getWork","params":[]}
2018.04.23:10:28:49.234: eths Eth: Received: {"id":5,"jsonrpc":"2.0","result":["0xb9fc39ed84eb76af1c19e3a593fe90fe100ae4ef020498e4478e7cf260fd9107","0x3ffd591ffcc97fb5e4150c521510e446bb11563ff632ea15845332648cabc086","0x0112e0be826d694b2e62d01511f12a6061fbaec8bc02357593e70e52ba","0x53c83b"]}
2018.04.23:10:28:49.234: eths Eth: New job #b9fc39ed from ssl://eu1.ethermine.org:5555; diff: 4000MH
2018.04.23:10:28:51.515: eths Eth: Received: {"id":0,"jsonrpc":"2.0","result":["0x4aeb047a6538c1133d80078e5c31823ccd9141aa65c747ba910e8e40fd351ac4","0x3ffd591ffcc97fb5e4150c521510e446bb11563ff632ea15845332648cabc086","0x0112e0be826d694b2e62d01511f12a6061fbaec8bc02357593e70e52ba","0x53c83c"]}
2018.04.23:10:28:51.515: eths Eth: New job #4aeb047a from ssl://eu1.ethermine.org:5555; diff: 4000MH
2018.04.23:10:28:53.533: main Eth speed: 121.243 MH/s, shares: 2643/0/0, time: 20:51
2018.04.23:10:28:53.533: main GPUs: 1: 16.083 MH/s (549) 2: 26.284 MH/s (497) 3: 26.301 MH/s (537) 4: 26.286 MH/s (516) 5: 26.290 MH/s (544)
2018.04.23:10:28:58.612: main Eth speed: 121.881 MH/s, shares: 2643/0/0, time: 20:51
2018.04.23:10:28:58.612: main GPUs: 1: 16.224 MH/s (549) 2: 26.410 MH/s (497) 3: 26.418 MH/s (537) 4: 26.413 MH/s (516) 5: 26.416 MH/s (544)
2018.04.23:10:28:59.159: eths Eth: Send: {"id":5,"jsonrpc":"2.0","method":"eth_getWork","params":[]}
2018.04.23:10:28:59.199: eths Eth: Received: {"id":5,"jsonrpc":"2.0","result":["0x4aeb047a6538c1133d80078e5c31823ccd9141aa65c747ba910e8e40fd351ac4","0x3ffd591ffcc97fb5e4150c521510e446bb11563ff632ea15845332648cabc086","0x0112e0be826d694b2e62d01511f12a6061fbaec8bc02357593e70e52ba","0x53c83c"]}
2018.04.23:10:29:01.050: main GPU1: 51C 0%, GPU2: 55C 23%, GPU3: 55C 23%, GPU4: 56C 23%, GPU5: 55C 23%
2018.04.23:10:29:03.691: main Eth speed: 121.890 MH/s, shares: 2643/0/0, time: 20:51
2018.04.23:10:29:03.691: main GPUs: 1: 16.240 MH/s (549) 2: 26.444 MH/s (497) 3: 26.451 MH/s (537) 4: 26.449 MH/s (516) 5: 26.306 MH/s (544)
2018.04.23:10:29:08.769: main Eth speed: 122.084 MH/s, shares: 2643/0/0, time: 20:51
2018.04.23:10:29:08.769: main GPUs: 1: 16.268 MH/s (549) 2: 26.486 MH/s (497) 3: 26.490 MH/s (537) 4: 26.490 MH/s (516) 5: 26.350 MH/s (544)
2018.04.23:10:29:09.160: eths Eth: Send: {"id":5,"jsonrpc":"2.0","method":"eth_getWork","params":[]}
2018.04.23:10:29:09.160: eths Eth: Send: {"id":6,"jsonrpc":"2.0","method":"eth_submitHashrate","params":["0x74537bd","0x930e7ab371861647a7fe1d91f42d4ec0a63adaa7cdb6b1f93bb0c7e7dfdc1d47"]}
2018.04.23:10:29:09.199: eths Eth: Received: {"id":5,"jsonrpc":"2.0","result":["0x4aeb047a6538c1133d80078e5c31823ccd9141aa65c747ba910e8e40fd351ac4","0x3ffd591ffcc97fb5e4150c521510e446bb11563ff632ea15845332648cabc086","0x0112e0be826d694b2e62d01511f12a6061fbaec8bc02357593e70e52ba","0x53c83c"]}
2018.04.23:10:29:09.707: eths Eth: Received: {"id":0,"jsonrpc":"2.0","result":["0x263c91b1879b664571e9e8a6019515a64793372393625b990341c2504baf5ff6","0x3ffd591ffcc97fb5e4150c521510e446bb11563ff632ea15845332648cabc086","0x0112e0be826d694b2e62d01511f12a6061fbaec8bc02357593e70e52ba","0x53c83d"]}
2018.04.23:10:29:09.707: eths Eth: New job #263c91b1 from ssl://eu1.ethermine.org:5555; diff: 4000MH
2018.04.23:10:29:10.907: GPU1 Eth: GPU1: ETH share found!
2018.04.23:10:29:10.907: eths Eth: Send: {"id":4,"jsonrpc":"2.0","method":"eth_submitWork","params":["0x15afa8c9719510af","0x263c91b1879b664571e9e8a6019515a64793372393625b990341c2504baf5ff6","0xcb03956db887a1778b735d61a4297714483e2f7ed14d9bc170048d5dd703ce01"]}
2018.04.23:10:29:10.907: eths Eth: Share actual difficulty: 15.6 GH (!)
2018.04.23:10:29:10.947: eths Eth: Received: {"id":6,"jsonrpc":"2.0","result":true}
2018.04.23:10:29:10.947: eths Eth: Received: {"id":4,"jsonrpc":"2.0","result":true}
2018.04.23:10:29:10.947: eths Eth: Share accepted in 40 ms
2018.04.23:10:29:13.848: main Eth speed: 122.072 MH/s, shares: 2644/0/0, time: 20:51
2018.04.23:10:29:13.848: main GPUs: 1: 16.268 MH/s (550) 2: 26.489 MH/s (497) 3: 26.491 MH/s (537) 4: 26.491 MH/s (516) 5: 26.333 MH/s (544)
As you can see the avg. hashrate before the miner lost connection was 147, and after it ended up around 122 mh/s, anyone know why? Of course I only had to restart the miner and it was back to normal again. No big problem, but hoping it won't happen again.