Troubleshooting your Spectrum email is to change your email client and device settings.

• First of all, make sure that you're using the proper login credentials.
• You should make sure to keep the Caps Lock key active when typing your password.
• If you've entered the correct credentials and are still unable to access your email, you may need to reset your password.

This will allow you to use your Spectrum account without any problems.

More help: https://emailscrunch.com/spectrum-email-is-not-working/