Changed password in control panel, now cannot access email on my iPhone

Changed password in control panel, now cannot access email on my iPhone

I received two messages on my iPhone with verification codes, so assume someone is trying to hack my account.  I immediately changed my password in the control panel, and ticked off the two boxes that asked if I wanted to disconnect other devices.  I am receiving email on my PC, but I not on my iPhone.  I keep receiving a message that my password is wrong.