Hi team

I have 9 mine Rigs use rx 470
Sometime all of them has same issues below

[2019-05-23 10:35:52] json_receive[259]: {"jsonrpc":"2.0","method":"job","params":{"blob":"0b0bb8aa98e70559de9e62ca77708cf1ad3cadf4cffa2898c9fb220e3f2f6bb54cc729d1b3be2e0 00000006f1c48800660941e0cd2da3101431efb1d04f0d1f57b68923f2f44294917be3202","job_id":"27518","target":"cf8b0000","height":1840555}}
[2019-05-23 10:36:47] watchdog: GPU0 [BUS: 3] hashing speed is 0 H/S
[2019-05-23 10:36:47] watchdog: GPU1 [BUS: 5] hashing speed is 0 H/S
[2019-05-23 10:36:47] watchdog: GPU2 [BUS: 6] hashing speed is 0 H/S
[2019-05-23 10:36:47] watchdog: GPU3 [BUS: 7] hashing speed is 0 H/S
[2019-05-23 10:36:47] watchdog: GPU4 [BUS: 1] hashing speed is 0 H/S
[2019-05-23 10:36:47] watchdog: GPU5 [BUS: 4] hashing speed is 0 H/S
[2019-05-23 10:36:51] json_receive[259]: {"jsonrpc":"2.0","method":"job","params":{"blob":"0b0bf2aa98e7058aa992fcacf54f6b6b27e548d4d674e1be98611f3cbf49de0b264e078d6bb9130 0000000acbfdbf080ca1ea35f6ea55ea52d8814648fab56e91d7b6f8e21d06adc20eb030f","job_id":"27519","target":"cf8b0000","height":1840556}}
[2019-05-23 10:41:37] Startup monitor attached


How about that
Here is my config pool
{
"pools" :
[
   {"pool_use_tls" : false,
"pool" : "xmr-asia1.nanopool.org:14444",
"wallet" : "41hgaCaFC......3NS6n6znSJoFEWN1pUcjG.a75df28f221a445a2174115d8f7a5a07c798071535 be256e1234567890abeef8.Mi9/thanhtoan17@gmail.com",
"password" : "x",
"location" : "europe"},
   
]
}