Error invalid password

I have changed from windows 7 to windows 10 and now I am getting error message password invalid. I have checked wireless connections and every thing is ok. How can I change password or get over this problem,any help please Jim
ps,hav’nt used WD TV for about six months and before that everything was ok.

I’d recommend double-checking the permissions assigned to your network shares, and to re-do them again as needed. I had the same issue as well.