Question: what is error np-40831-6 on ps4?
Answer: And your getting the ps4 error code NP 40831-6 & NP 40833-8??? This can be a bad thing, this means your PS4's ip address is banned from PSN because it was determined to be a threat! ... What you need to do is get your router to assign your ps4 a new ip address. Unplug your router & modem overnight and try logging back in.