Optimum sign in my account - Computers & Internet

This is and ongoing problem with the new OS's. If you delete the email account and redo the email setup this usually helps. Ex. If you have a Optimum (Cablevision) email acct you need to use mail.optimum.net NOT mail.optonline.net cause Apple is not recognizing the old server names. So check with your email provider if the server names to setup have changed. I know that changing your email address can be a pain but if you go to a GMail email acct this will solve a lot of the problems that occur when using cable provider email accounts. Also there is a software that will notify all your contacts that your email has changed that you can implement if you choose.

you have to log out of your account and then you will be able to log on under a different account

You can create a gmail account by visiting the following webpage and creating a Google account: https://accounts.google.com/signup

A Google Account gives you access to Google products like Gmail, Google+, YouTube, and more with a single username and password. A Google Account comes with a Gmail address and a Google+ Profile, which will help you have a richer, more personalized experience across Google.

You can read more at: https://support.google.com/accounts/answer/27441

Hope that helps!

Multiple sign-in is most convenient to use on devices that you don't share with other people (where you won't need to sign out to let others access their own accounts).

Sign in to additional accounts

1. Sign in to a supported Google product.
2. Click your name or email address at the top of the page.
3. Select Add account from the drop-down menu.
   
   
   
4. On the page that opens, enter the email address and password for another account you wish to access, and click Sign in.




Switch between accounts

Once you're signed in to more than one account in the same browser, you can easily switch accounts. Just click your name or email address at the top and click on the email address you'd like to sign in to.



Products that do not support multiple sign-in

Some Google products and mobile versions of Google products do not support the use of multiple accounts in the same web browser. Instead, they default to the first account that you signed in to from your current browser.
If you want to use an account with a product that doesn't support multiple accounts, you have two options:

• Sign out of all your Google Accounts and then sign in to the account you want to access.
• Sign in to another account using a second web browser Learn more.

Signing out

If you choose to sign out of any account while using multiple sign-in, you will be signed out of all your accounts. To resume using multiple sign-in, you will need sign in to one account and then use the Add Account option to sign in to your other account(s).