Email Protection

  All of a sudden the email protection feature won't allow me to send or receive mail with Windows Live Mail. The following occurs:

 

Unable to send or receive messages for the Cox (cda1951) account. Your server has unexpectedly terminated the connection. Possible causes for this include server problems, network problems, or a long period of inactivity.
Server: 'pop.east.cox.net'
Windows Live Mail Error ID: 0x800CCC0F
Protocol: POP3
Port: 110
Secure(SSL): No


 If I disable the email protection, email is sent and received normally. What could be the problem?