installed droid nas and it shows up on my macbook pro but it won't open, asks password

[AC Question]

i have samsung S 7 and want to connect to macbook pro. used droid nas, it shows up in finder on my home wifi as a network computer but when i click on it, it asks me for user name and password. It seems to be the user name and password for the macbook pro, because i don't have one for the S7 and droid nas didn't ask for a password. So it fails to connect. Also can't sign in as guest.