Thanks for posting! Since you are able to connect to your Slingbox on another device, it sounds like it may be an issue with the SlingPlayer or the network your are on. I would recommend testing the speed of the network you are connected to. I would also check to see if you have an updated SlingPlayer application on your phone. You can do this by going to the Google Play Store and go to the application here to check for an update.
Here is an article that explains what you will need for minimum network speeds,
If you have any other questions, feel free to respond or give us a call at 1-877-467-5464. We are open seven days a week, from 10:00am to 10:00pm EST.
The Sling Media Moderation Team