After having my DCH3416 since I've had the service about a year never had a single problem with the HDMI connection from my DCH3416 to Pioneer Elite Amp to my HD Projector nor have I even unplugged it since.....

Now today I go to watch some TV and can't get it to work for the life of me its flashing dU1 duI dVI or something I dunno and I can't get it to work at all. I try using Component cables and it works perfectly fine but the second I use HDMI it goes insane..... flashing dU1 dVI dUI w\e it is....

Then it just flashes display when I try to get in the HDMI Settings Menu some HDCP error and doesn't display for more then 2 seconds but it can't be a HDCP error I've had this setup working forever..........

WTF

Bout to switch to UVERSE

I heard there was a recent firmware upgrade maybe this is what caused this?

Seems to be running 18.43 Firmware

I posted this in the Official Comcast 3412 & 3416 STB Discussion thread but there is so many topics of discussion in there it was just kind of ignored...... (sorry)