Visual Voicemail Issues in iOS 11

Me too!  Did anyone find an answer?

No, it is not working even after doing everything what AT&T and Apple told me to do.  Reset network settings or call my mobile number and leave voice message, etc.  Apples says it is AT&T problem and AT&T says it is Apple problem.  Classic example of finger pointing....

Did that work?  I tried that and it said it was the wrong password. I tried calling the phone, and it went to VM, but then asked for the password.

i had no new missed calls but had 10 VMs when the update finished.

yes, very frustrating!

I tried resetting my VM password in Settings, but after I input it a second time, the screen just says "Saving Password."  But apparently never does. 

Okay, I dialed 611 for ATT and was able to reset my password using the automated system.  They texted me a temp password, which somehow brought my visual voicemail back.   I called my voicemail by holding down 1 on the phone, and then went through the prompts to setup my voicemail (apparently my greeting was erased).  I was also able to turn off the password for voicemail in the administrative options.

I'm having the same issue. Nothing has worked and they've reset my voicemail box several times. My phone keeps dropping the connection to my account also - I try to dial out and get a recorded message that says the call I'm trying to make isn't allowed. So I power down, power up and that part works again, but no visual voicemail or any kind of voicemail alert. I don't even care that much about voicemail, but it's maddening that it's a brand new, expensive phone and there's no solution.