I caught the error I mentioned in previous post about miner not sending shares to the pool. Here is the miner output from log. Also you can see here errors about update failures.
[INFO] [2018-01-25T00:50:26+03:00] Bminer: When Crypto-mining Made Fast (v5.2.0-4f20af3)
[INFO] [2018-01-25T00:50:26+03:00] Checking updates
[WARN] [2018-01-25T00:50:26+03:00] Failed to read from the network: Get https://api.bminer.me/v1/init/zec/520: read tcp 192.168.200.182:58223->104.31.69.221:443: wsarecv: An existing connection was forcibly closed by the remote host.
[INFO] [2018-01-25T00:50:26+03:00] Checking updates
[WARN] [2018-01-25T00:50:31+03:00] Failed to read from the network: Get https://api.bminer.me/v1/init/zec/520: read tcp 192.168.200.182:58224->104.31.69.221:443: wsarecv: An existing connection was forcibly closed by the remote host.
[INFO] [2018-01-25T00:50:31+03:00] Checking updates
[WARN] [2018-01-25T00:50:36+03:00] Failed to read from the network: Get https://api.bminer.me/v1/init/zec/520: read tcp 192.168.200.182:58225->104.31.69.221:443: wsarecv: An existing connection was forcibly closed by the remote host.
[INFO] [2018-01-25T00:50:36+03:00] Checking updates
[WARN] [2018-01-25T00:50:44+03:00] Failed to read from the network: Get https://api.bminer.me/v1/init/zec/520: read tcp 192.168.200.182:58227->104.31.69.221:443: wsarecv: An existing connection was forcibly closed by the remote host.
[INFO] [2018-01-25T00:50:44+03:00] Checking updates
[WARN] [2018-01-25T00:50:50+03:00] Failed to read from the network: Get https://api.bminer.me/v1/init/zec/520: read tcp 192.168.200.182:58228->104.31.69.221:443: wsarecv: An existing connection was forcibly closed by the remote host.
[INFO] [2018-01-25T00:50:50+03:00] Checking updates
[WARN] [2018-01-25T00:50:55+03:00] Failed to read from the network: Get https://api.bminer.me/v1/init/zec/520: read tcp 192.168.200.182:58229->104.31.69.221:443: wsarecv: An existing connection was forcibly closed by the remote host.
[INFO] [2018-01-25T00:50:55+03:00] Checking updates
[WARN] [2018-01-25T00:51:00+03:00] Failed to read from the network: Get https://api.bminer.me/v1/init/zec/520: read tcp 192.168.200.182:58230->104.31.69.221:443: wsarecv: An existing connection was forcibly closed by the remote host.
[INFO] [2018-01-25T00:51:00+03:00] Checking updates
[WARN] [2018-01-25T00:51:05+03:00] Failed to read from the network: Get https://api.bminer.me/v1/init/zec/520: read tcp 192.168.200.182:58231->104.31.69.221:443: wsarecv: An existing connection was forcibly closed by the remote host.
[INFO] [2018-01-25T00:51:05+03:00] Checking updates
[WARN] [2018-01-25T00:51:10+03:00] Failed to read from the network: Get https://api.bminer.me/v1/init/zec/520: read tcp 192.168.200.182:58232->104.31.69.221:443: wsarecv: An existing connection was forcibly closed by the remote host.
[INFO] [2018-01-25T00:51:10+03:00] Checking updates
[WARN] [2018-01-25T00:51:15+03:00] Failed to read from the network: Get https://api.bminer.me/v1/init/zec/520: read tcp 192.168.200.182:58233->104.31.69.221:443: wsarecv: An existing connection was forcibly closed by the remote host.
[INFO] [2018-01-25T00:51:15+03:00] Starting miner on devices [0 1]
[INFO] [2018-01-25T00:51:15+03:00] Starting miner on device 0...
[INFO] [2018-01-25T00:51:15+03:00] [D0] GPU check watchdog has started
[INFO] [2018-01-25T00:51:15+03:00] Started miner on device 0
[INFO] [2018-01-25T00:51:15+03:00] Starting miner on device 1...
[INFO] [2018-01-25T00:51:15+03:00] [D1] GPU check watchdog has started
[INFO] [2018-01-25T00:51:15+03:00] Connected to equihash.usa.nicehash.com:3357
[INFO] [2018-01-25T00:51:16+03:00] Started miner on device 1
[INFO] [2018-01-25T00:51:16+03:00] Starting the management API at 127.0.0.1:2222
[INFO] [2018-01-25T00:51:45+03:00] [GPU 0] Speed: 458.11 Sol/s 251.54 Nonce/s
[INFO] [2018-01-25T00:51:46+03:00] [GPU 1] Speed: 485.99 Sol/s 259.91 Nonce/s
[INFO] [2018-01-25T00:51:46+03:00] Total 944.10 Sol/s 511.46 Nonce/s Accepted shares 0 Rejected shares 0
[INFO] [2018-01-25T00:52:15+03:00] [GPU 0] Speed: 466.53 Sol/s 253.97 Nonce/s
[INFO] [2018-01-25T00:52:16+03:00] [GPU 1] Speed: 488.53 Sol/s 260.79 Nonce/s
[INFO] [2018-01-25T00:52:16+03:00] Total 955.07 Sol/s 514.76 Nonce/s Accepted shares 0 Rejected shares 0
[INFO] [2018-01-25T00:52:45+03:00] [GPU 0] Speed: 471.98 Sol/s 255.26 Nonce/s
[INFO] [2018-01-25T00:52:46+03:00] [GPU 1] Speed: 491.71 Sol/s 261.13 Nonce/s
[INFO] [2018-01-25T00:52:46+03:00] Total 963.69 Sol/s 516.38 Nonce/s Accepted shares 0 Rejected shares 0