I have recently purchased a EEEpad asus i pad. I would like to link it with dish sling. The app for sling is on my Ipad, when I try to make it work, I get a message that my receiver is not hooked to the internet. I have a model 622 DVR. Will the 622 work with the sling or do I have to get a newer model receiver? Would appreciate if any one can help me.!