Mac will not let me re enter password for google

broken image

Only Gmail and Exchange (for work, which is functioning perfectly, no issues with that one) I wonder why this happens for only Google and Yahoo? (I do not have a Yahoo email account configured on this phone. Just out of curiosity, I also tapped the others (iCloud, Exchange, Yahoo, AOL and Outlook) on the list and they all open a screen except for Google and Yahoo, which also starts loading but then immediately disappears. I've tried Settings > Mail, Contacts, Calendar, Notes 'Add Account' but when I tap 'Google' I get the same thing - the window starts loading, then it disappears. I've tried powering down the phone (properly) and restarting it. I've been scouring the internet all day in search of a solution. When I attempt to do this, by tapping on the blue 'Reset Password' text, the Gmail window starts to open but then immediately disappears! Naturally, the next time I go to check my GMail email on my phone (NOTE: I do not use a separate GMail app) it tells me to update my password in Settings. In my Settings > Mail, Contacts, Calendar, Notes under accounts is my GMail account which has been working perfectly fine on my iPhone 6S until I changed my GMail password.