I don't know why all replies encourage to use multiple fiverr accounts.
First, I need to mention is if those two accounts are from yours.
You are definitely against Fiverr TOS. You doing the wrong thing. I am not sure why you handle two accounts.
But there are certain situations for making more accounts. But One user can handle one account.
But if your family member also working on Fiverr. You can notify to Fiverr team and get special permission for use. (But you need to give clear information those accounts use two users.)
But definitely, if you and your family member use the same wifi it will be trouble. (Personally, I am not giving even hotspots to my friends who use the Fiverr app. they too.)
Again, As you mention, I think you use two Fiverr accounts, the same user. That is breaking Fiverr TOS and if it detects by the Fiverr team. Both accounts will be deleted and maybe you can not create accounts anymore.
So, I suggest reading Fiverr TOS here>> https://www.fiverr.com/terms_of_service