Current speed of my workers is reported as 0.0 kH/s instead of about 500 MH/s.
They are connected to litecoinpool and work as usual, just the speed displayed at the site is zero.
What can be a cause of it?
If the pool reports a speed of zero it means that your miner is not submitting shares. This can happen for a variety of reasons, ranging from hardware failure to software misconfiguration. Since there are many possible causes, it is hard to debug this issue without further insight. You should try to look for error messages, but unfortunately many ASIC interfaces are not very helpful in this regard.
Some of the most common problems are:
- A bad or insufficient power supply.
- A badly configured server URL (especially in the case of Antminers, as Bitmain's software requires one to omit the "stratum+tcp://" protocol prefix).
- Wrong worker credentials. You must use the username and password of one of your workers, not of your account. Worker usernames are composed of two parts separated by a dot, the first part being your account username. Both usernames and passwords are case-sensitive!
And what about "stratum requested work restart" on numerous pools - and since I see the wotk done, the credentials are fine, and everything works perfectly for some time then suddenly at least a ton of "stratum requested work restart" with no reason at all