Enter credentials for my comcast.net with sync options and incoming server settings

@user_97ffdf 

I keep getting enter credentials for my comcast.net email address thru my Gmail and when i click next there 8s problem with account setup that username & password is incorrect...I don't know what else to do and it keeps coming up on my android 

Are you saying you have your @comcast.net email forwarded to your Gmail account?  Or? Did you set up your @comcast.net email account to be accessed at your Gmail account?