@TechKnow fair enough, but it sounds like the problem hasn't been clearly defined yet. The key to fixing a problem is reproducibility, or knowing what changed when it went wrong.

It would be interesting, fo example, to see what happened exactly before logout. Did a cookie expire? Did a cookie refresh fail? Did the lookup happen on a different server? Is one member of the mail cluster or auth cluster failing? Is a NAT device table expiring? Without better clues than "logged out at random" it's difficult to get more attention.

@phillipremaker The point is that AT&T wants to make this a user failure rather than an AT&T failure. This has nothing to do with cookies, nothing to do with how we log in; it's a technical failure/glitch on AT&T's end. My Yahoo mail account never logged me out when the browser was closed; now, it does it every time. This has nothing to do with logging in to Currently.com either. I log in there every time and it does nothing to solve the problem. AT&T is doing all it can to dodge accountability for this issue. It's 100% AT&T's (or its affiliate) failure (and has been going on for weeks).

I definitely understand how annoying the "blame the user" attitude is, and I hate that. Unfortunately, the only way to fight it is with hard evidence. There could be all kinds of things changed - new browser versions, changes at Yahoo, or changes at AT&T. The intertwining of AT&T and Yahoo make it especially hard, doubly so when using legacy domains.

Even if it is a glitch, there are probably a dozen systems involved, and since it only affects some AT&T customers, nailing down the mix of things that makes it happen is key to getting it fixed. AT&T support is optimized to do a high volume of simple questions. If you have something harder, you need to show up with a lot more evidence and put up with their slow process. Unless you know the contours of the problem well and drive them relentlessly, they will presume the problem is between the chair and the keyboard.

@TechKnow   AT&T isn't claiming this is a user failure.  ATTHelp has no clue so they do what they do best.....regurgitate old boilerplate (clear cache/cookies, reboot the gateway, etc etc etc) so they appear to be "helping".  The few times that they deviate from that script, they admit the problem is not the users but rather "bad actors". Then, inexplicably, they start posting the boilerplate again.  So as usual, ignore what they have to say.

The only "fix" is to do the Forgot Password dance.

The only real fix is to move to a different email provider.

issue back again here. After 3 password changes and talking to AT&T CS last week, I finally got back in. I checked the “keep me logged in” box and no issues for a week.  
Earlier today I logged out, hoping that might resolve the multiple “McAfee” and “Kohl’s” spamming, along with many others. No dice. I am still able to stay logged in on my phone, it is using yahoo mail. But tonight I tried to login to my currently.att email and back came the “too many unsuccessful attempts” error. 
Here is my theory of what is going on; just my theory, and I hope AT&T reads this…Since our AT&T email login is our email address, hackers may be using that and trying multiple password hack attempts, which then locks the user out after the limit is reached.  I managed to reset my password on the att.com site this evening and now am able to get to my email. So I figured if I changed my User ID to something complex that is not my email address I should have “unsuccessful attempts” problem resolved. However, AT&T requires that my User ID be a valid email address.  This is poor security protocol. 
My recommendation consists of two parts (you listening, AT&T?) 1) allow the user to create a User ID that is not an email address, but maybe something that is as complex as their email password.  2) enable two-factor authentication. When the user attempts to login to their email with their password, they must also enter a six-digit PIN (stored in their Profile) or have the option of having a six-digit PIN texted to their phone. 
(Sending me a PIN to my email address is moot if I can’t log in to my email. Duh!!)

@dgow888   Your theory is essentially what some ATTHelp people have posted.  They found "bad actors" are attempting to log into the email accounts, triggering the 6 failed attempts one gets before the account is locked.  The only way to get back in is the "resync" the account by going through the Forgot Password process.  The system is so flawed that it allows you to input the exact same password each time.

I'm not sure changing the user ID would matter.  Yahoo has had numerous data breaches over the last handful of years, releasing over 3 billion user credentials.  So no matter what your use ID is, rest assured that if you have had your email address more than a year or two, it's already out there in a large number of lists.

soooo, after the problem rectified itself, it came back.  But i just said screw it and signed back in everytime.  

NOWWW, it has totally screwed me.  the login page with allll of its stop points  keeps sending me in a cycle. 

It sends me to the ATT page where you pay your phone bill and crap.  Then it asked me to verify myself with one of those "I AM NOT A ROBO"T puzzles and  it  STILL send me to the ATT bill paying page.    I've only done it 3 times, bcuz I dont want to get frozen out of my email forever. 

(Edited per community guidelines)?!?!? 

The whole att.com web infrastructure is a disaster.  I run into this sort of crap from time to time and have to go in and surgically remove specific AT&T references from my browser's data.  You may also see if an Icognito or Private window (or whatever your browser calls it)  gets past the blockage.

Mine is even worse! It does the whole logging me out thing, but on top of that, I have to change my password every single time I try to log in! If I don't, it says "too many incorrect login attempts" the FIRST time I enter the CORRECT AND CURRENT password! Every time. Clearing cache does not work. Using Chrome and Firefox on PC, and Safari on mobile, NOTHING fixes it. It's 100% a problem on AT&T's end, and on top of that, it's just the direct result of poor design from an attempted merger with Yahoo! email, and it's like none of the software engineers at AT&T even know what they're doing. What's the problem?? Oh wait, you guys don't even know! Silly me.

And, I'm bolding this so nobody DARE miss it, this happens within minutes!!!! I leave the page for less than 5 minutes, it logs me out, and come back to the "too many failed login attempts" message the FIRST time I enter my password correctly. So either the "bad actors" excuse is also wrong, or there's some secret cabal of thousands of hackers trying to constantly get into every single account that has this problem, 24/7, dozens of times per minute! I call horse manure.


It seems FAR more likely to me that it's just erroneously reading my single CORRECT login attempt as multiple failed ones, and has nothing AT ALL to do with anyone actually trying to get into my account. Take my words exactly as they're written AT&T, or don't bother replying to me. It's not some other problem. Exactly what I say is happening, is happening.

Did I mention this has been happening to me for YEARS NOW??!?!?

I agree with this.  Yahoo told me it was an AT&T problem and AT&T said it was a Yahoo problem.  I also tried everything including incognito and private browsing.  everything I tried I was told to do does not work at all.  Right now choosing the stay logged in option has worked so far.  Now another problem had arisen.  I'm not getting emails from several sites now.  Recently dentist's emails. And, several stores and mailing lists  I've subscribed to.  This has been happening for awhile and I had to change and use my gmail account.  Once I switched I have not had any problems receiving any of these I no longer get on AT&T.  I was told AT&T and Yahoo don't stop those, but They weren't in my spam box or anywhere else so where did they go?.  Also, I've received tons of spam email in my inbox now since this log-in nonsense started.  I'm so sorry to hear more users have having issues.  I'm trying to decide of it's worth it to keep the AT&T email account.