latest firmware slingbox prohd and router at both ends
5 Mbps upstream @ slingbox location
latest software in ie and desktop app; ridiculous computer rendering(dual 5770s, core i7 920, etc etc)
When I change to a channel, I get choppy video, the bandwidth spools up to around 80-90Kbps after a few seconds, then I get weak or no signal detected. All channels, all rendering devices. video and audio comes in and out for a few seconds at a time.
We just upgraded the cable modem @ broadcast site, which is when this started.
I have re-run slingbox setup, including rescanning of channels.
I have gone through configuration steps on router to forward 5001 properly.
This is a pro-hd connected direct to coax from the wall.