I have a Droid Razr Maxx. Since the KitKat update to 4.4 in May 2014, my Exchange email account will not sync. My Comcast account does. If I power cycle the phone, it will sync the Exchange account for a short time until I receive the following error message: 'couldn't open connection to server due to sec..." When I touch the error message, it just goes away. If there is more of the error message, I'm unable to see it. I have removed the Exchange account and added it back in three times. My IT department indicates they have not made any changes to the security levels, but have fielded several questions from other Android users with the KitKat update. My text messaging service also stopped. I've been reviewing all forums and tried different things, but to no avail. I went to the Verizon store, who just said that there have been 'lots' of complaints about KitKat and that I should buy a different phone. This $200+ phone is only 7 months old. Please help!!