Hi, I am A. Stevens here to help with your question!
Nell - Can you advise me what email service you are using? I understand you normally load via Windows mail but who is your email provider? IE @hotmail.com @live.com @gmail.com
I understand. So at this time you are unable to access using your tab or phone either? Were you using the built in mail application on both? Your password ***** have gotten affected after the W10 upgrade. Can you use another device to verify your login information for platantioncable.net is? You can try logging in here to verify your credentials for your email are correct.