Replaced 3G with 4G iphone, can't access gmail on phone

Question

I just replaced my 3G iphone with a 4G - everything synched and transferred over.  I have google authenticator and cannot access gmail on my phone without disabling the authenticator.  When the authenticator is on and I try to get mail on phone, I have to go through putting in my email address and password and get the error "Cannot Get Mail The user name or password for "imap.gmail.com" is incorrect.

Answer 1

Hey Sara4eva,
Thanks for the question. I understand you are experiencing issues with mail on your iPhone 4. The following article may help to resolve your issue:
iOS: Troubleshooting Mail
http://support.apple.com/kb/TS3899
Try these basic troubleshooting steps first
1. Tap Safari and attempt to load a webpage (try any webpage). If you can load a webpage, then your device has Internet access. If you are unable to load a webpage,follow these troubleshooting steps.
          - Try to use an alternate Internet connection if available:
                    1. Try a different Wi-Fi connection
                    2. If your iOS device has an active cellular data plan, tap Settings > Wi-Fiand turn off Wi-Fi.
                    3. If the affected email account is provided by your Internet provider, see if your issue is resolved while connected to your home Wi-Fi network.*
2. Log in to your email provider's website to ensure that the account is active and the password is correct.
3. Restart your iOS device.
4. Delete the affected email account from your device.
          - Tap Settings > Mail, Contacts, Calendars.
          - Choose the affected email account, then tap Delete Account.
          - Add your account again.
* If you are only able to use your email account while connected to your home network, this may be a limitation put in place by your email service provider. For further support, please contact your email service provider directly.
Thanks,
Matt M.