I have a new Galaxy Note 3. All apps loaded fine until I connected to my exchange server so I could sync my calendar and email. Installation went fine and everything synced. But now when I go to the PlayStore to download any apps they download but will not install. I get the Unknown Error -113. At the T-Mobile store they couldn't figure it out and did a factory rest. I reloaded the apps, then connected to the exchange server, everything synced, then: same error for any other apps I want to install. T-Mobile now says this is a microsoft problem. I disconnected from the exchange server and I can install apps, but have no calendar or email. BTW everything worked fine on my prior Galaxy III.