Do those 192.168.2.xxx addresses belong to other computers that are on your network that may be trying to make child connections? If those are your computers then those are what need to be checked for viruses because to me it looks like an outside device is trying to connect with the miner - not the miner initiating the connections.
in fact they are other miners on the network .
. I am really tired of this I have tried everything.Edit: I think it is normal for miners to make child connections, bcz i have seen it on normal working miners log but i dont know what is it for ? and here the problem is it can not authenticate.
Looks like you are hi-jacked...
I think you mean to create kind of quarantine , I tried to do so by turning off all devices on network except one which is being updated by firmware using whatsminer tool maybe I should try doing it with sd card do u think using sd card is better?
I am not using nicehash , i dont know where those pool addresses come from.