Secure sites Don't Recognize Passwords

Starting yesterday, most of my sites that require a password (e.g. bank, mutual fund, credit card) would not accept the passwords. A couple would not allow me to change to a new password, even after I was sent temporary passwords to use to do that. I had to call the sites to have them try, and it took several tries by Support to change the passsword.
Will appreciate suggestions about what happened.
Windows 7; Malwarebytes (paid version)and Avira Premium scan daily.

zammer said:

Starting yesterday, most of my sites that require a password (e.g. bank, mutual fund, credit card) would not accept the passwords. A couple would not allow me to change to a new password, even after I was sent temporary passwords to use to do that. I had to call the sites to have them try, and it took several tries by Support to change the passsword.
Will appreciate suggestions about what happened.
Windows 7; Malwarebytes (paid version)and Avira Premium scan daily.

Could be the weather, if the sites have servers in locations where there are major problems. It could just as well be something else.

HTH

It seems unlikely that only sites with passwords, and not every one of them, would be affected. Once I get past the passwords the sites are fine.