email- why do I have to keep changing my password every log-in?

Before you created this post did you happen to see the list of posts in this forum?  There are hundred and hundreds of posts about this exact subject.

To save you the trouble and just hit the highlights, there are no fixes and no answers as to why this has been happening since last October.

But one very minor aid is that you don't need to change the password, it will let you keep entering the same one each time.  That at least keeps you from having to go change the password on other devices that access the email account.  Like I said, not much help but it's all there is.

@anglenaemmaasd 

I've removed your post with the offer to help with Yahoo/AT&T email.  We have no idea who you are or how legit or not the phone number you posted is.  If you are an employee there are procedures to let you be identified as such.

For now you just look like some sort of scammer.

I don't think you understand his question. I have the same problem about once a month with my email and cell phone logging into my accounts.

Whose question, the OP's?  I understand it completely, since as I said, there are many hundreds of other people here with the exact same problem.