Sub is unable to log into webmail
Confirmed SUB HAS A MAIL HOST IN BOOST2
http://boost2.cablevision.com/boost2/Login.jsp
DTS sub
Session ID: 
Confirmed sub can log into AMS
Confirmed sub does not have caps lock key on
Confirmed successful login from our side
https://webmail2.optonline.net/
Reset IE default Settings
Tested from a different Web Browser

