sometime the miner say that


U]SB management [P]ool management S]ettings D]isplay options [Q]uit                                                 
0: BSD 10014785: BM1384:02  200.00MHz T:169 P:0   (97:195) |  0.0% WU:  0% |  0.000 /  0.000h/s WU:0.0/m               --------------------------------------------------------------------------------                                         
[2021-08-20 21:17:16.835] Started cgminer 4.11.1                                                                       
[2021-08-20 21:17:16.839] Probing for an alive pool                                                                     
[2021-08-20 21:17:17.004] Pool 0 message: Authorised, welcome DLWPMwmTVyBCxs7Hi5uevNrZBiAovPkRiF!                       
[2021-08-20 21:17:17.004] Pool 0 difficulty changed to 2000                                                             
[2021-08-20 21:17:18.922] 0: BSD 0 - 2Pac BM1384 Bitcoin Miner (10014785)                                               
[2021-08-20 21:17:18.926] Network diff set to 2.23G                                                                     
[2021-08-20 21:17:25.972] 0: BSD 0 - asic plateau: (1/3) 193.75MHz                                                     
[2021-08-20 21:17:30.759] Network diff set to 2.14G                                                                     
[2021-08-20 21:17:30.759] Stratum from pool 0 detected new block at height 13508378                                     
[2021-08-20 21:17:31.068] 0: BSD 0 - asic plateau: (2/3) 193.75MHz                                                     
[2021-08-20 21:17:36.135] 0: BSD 0 - asic plateau: (3/3) 193.75MHz                                                     
[2021-08-20 21:17:36.135] 0: BSD 0 - plateau adjust: target frequency 100.00MHz -> 187.50MHz                           
[2021-08-20 21:17:41.214] 0: BSD 0 - plateau adjust: target frequency 187.50MHz -> 181.25MHz                           
[2021-08-20 21:17:46.286] 0: BSD 0 - plateau adjust: target frequency 181.25MHz -> 175.00MHz                           
[2021-08-20 21:17:50.897] Network diff set to 2.04G                                                                     
[2021-08-20 21:17:50.897] Stratum from pool 0 detected new block at height 13508379                                     
[2021-08-20 21:17:51.303] 0: BSD 0 - plateau adjust: target frequency 175.00MHz -> 168.75MHz
.........
......     
[2021-08-20 21:19:58.127] 0: BSD 0 - plateau adjust: target frequency 18.75MHz -> 12.50MHz                             
[2021-08-20 21:20:03.210] 0: BSD 0 - plateau adjust: target frequency 12.50MHz -> 6.25MHz                               
[2021-08-20 21:20:08.285] 0: BSD 0 - plateau adjust: target frequency 6.25MHz -> 0.00MHz   

       
and nothing :-(