Cannot connect to CoxWifi hotspot anymore

Hi.  I am unable to connect to CoxWifi hotspots anywhere anymore on iPhone and iPad.  It does work on my daughters iPad.  When I try and connect, the log in screen will come up, I put in my user name and password and get ‘AAA-200 Unexpected Error’.  Any ideas on what I can do to fix it?  I’ve tried resetting my network settings and it didn’t help.  

Thanks, 

Maria