Obviously there's something wrong haven't you read the previous post where i clearly say that i have tried contacting BW and it did not work .
Great help reminding me to contact BW , amazing effort .
Again sorry for hurting ur feelings snowflake , now i know people wasting their hard earn money < ur over sensitive feeings .
PS:i never screamed at you , criticism does not equal screaming.
Easy now! He just reviewed the miner. We operate the L21s as well. Although we mostly run Bitmain products, we do have 12 of the L21s. I can tell you that it's not a latency issue. It doesn't matter which pool you point to, it's still a problem. There is a high number of rejected shares on all of our L21s (10-40%) and the reported hashrate (as a result) mainly fall mid to upper 400 MHs.
This is a real issue. I am not sure if BW will fix it or not. I know that Hyperbitshop's CEO just told a friend of mine that he would get to a firmware update in a few weeks. But, seems as if Hyperbitshop isn't selling the miners any longer since they are listed on the BW.com site.