Frequent Password Errors

For the last 2 - 3 months about every 10 days I m unable to sign into my Verizon email because it claims that my password is in error.  Using the security word (because getting an email sent to the address I can't get into is not very useful!) I reset my password to what LastPass has recorded is my password.  Then everyting works ...until we go back into this loop.

At least I now only have to spend 5 minutes to get this fixed but it is so unnecessary!