Visit this URL: https://www.spectrum.net/sign-in-redirect on your favorite web browser.
Search the option of Forgot Username or Password? And tap on this link.
After that, confirm your account with the help of any one methods:-
By entering Username or Zip Code
By entering Phone number or Email address
With the help of Account number or Security Code
Tap the button next and you will move to next page and select any one options:-
Get Username and Password both
Choose the options of Get password and tap the button to continue.
Open your email address which is associated with your charter email account where you will receive a link to reset the password.
Tap the given link and complete the image captcha and tap the continue button.
Now, you will receive 6 digit code and you will be redirected to the password reset page.
On this page, enter your password then again enter your password for confirmation.
Then try to access your charter email account with the help of a newly created password.
Read more here:- https://www.datarecovo.com/spectrum-net-charter-email-login/