Just over a year ago, I was having problems receiving email on Windows Live Mail for my sbcglobal.net account. It started working again after a few days and it's not clear to me what made it work again. Recently, I started having problems again and haven't been able to get any emails since yesterday. It's the same message I received over and over again last time:

Unable to send or receive messages for the Sbcglobal account. Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity.

Server: 'inbound.att.net'
Windows Live Mail Error ID: 0x800CCC0F
Protocol: POP3
Port: 995
Secure(SSL): Yes

Help! How can I start receiving emails again?