This quick post will show you how to TURN OFF .. Auto Start (as by default this is set to run)
- Select Settings Icon (top right portion)
2. Select General Settings
3. Click on AutoStart on Bootup to remove the check mark
4. Save Changes
Note: If you are getting buffering issues using the calstreamz URL you can check out this post on how to change the stream format (seems that HLS works better but can see what works better for your device.