Just wanted to add: I had success setting up a Slingbox 500 with a VIP2502 today. I could not get the web setup to work at all anymore - r/slingbox has other people complaining about that too. But the on-device setup with remote control worked. I told Slingbox it was a VIP2202 receiver and that seems to work fine enough. The remote image on the tablet app looks different but every button seems to work.
The device was previously wired to a Bell Satellite PVR on HDMI. I could see that HDMI was blocked on the Fibe receiver because of HDCP. So I tried by component and set it up a second time, and that worked. 1080i looks better than 720p. 1080p does not work.
Oddly enough, when I disconnected HDMI, streaming the box resulted in a weird message of low/no video signal, planted directly in the middle of a perfectly good looking video stream. So I reconnected HDMI just to get the message to go away.