my apple ID cannot sign into my new iphone 6s

Hi,

i can logon to my apple ID via my computer but when i setup my new phone (as a new phone) and try and use my ID it comes back as "incorrect Apple ID or Password" Try another Apple ID message on the phone.

I know 100% my apple ID is valid and my password is correct (i have reset several times and it works), I have also know the phone is connected to the internet.

Can anyone help ?

thanks