My local cable guy delivered 3 of these brand spanking new RNG-110 boxes [ www.comcast.com/corporate/customers/customer_support/digitalsettopbox.html] (box is at the very bottom of the page) to the jobsite yesterday and I'm hoping I can swap them for older boxes... we've been getting the Motorola DCH-3200 for a couple years. He seems to think the new boxes are the bomb, though; while I was noticing the smaller rack-unfriendly shape, loss of coaxial digital audio output, and curved front IR window. 

I found a RNG-200 codeset in the MX-900 editor that turned the power on & off, so I thought I might be good to go. Hooked up the MRF-350 base station, put an emitter on the cable box (the IR window is also the site of a row of 4 colored status leds), and mono 1/8" cable into the rear IR input of an Integra receiver.

Got upstairs to the TV -- and no control of the cable box whatsoever. Volume, Power, etc on the receiver works just fine. Just for kicks, I swapped the emitter and mono cable to see if the "IR Receive" port on the back of the cable box was active, and--big surprise--it wasn't. Back to the emitter. I increased and decreased flasher brightness and got no response. Held the emitter over various spots on the IR window to see if there was a sweet spot, but couldn't find any place where the flasher worked.

If I point the MX-900 at the darn box the "Remote" LED lights up every time.

At this point I'm wondering if the row of LEDs on the cable box is blocking or interfering with the flasher... The manual (see link above) indicates a possible "front panel brightness" setting. Hmmm.

The base station ID is set to "E"; I'm going to switch that flasher to RF only and assign it a specific port in the morning ... by which I mean the afternoon, assuming things get done. May also try a non-URC IR emitter.

Wonder if anyone else has wanted to beat this box into pieces with a hammer.

Someone beat you to taking a hammer to Comcast:
[Link: washingtonpost.com]

Update: Changed the base station ID to "A"... changed flasher brands... changed remote to RF only and base station output to Port 6. Turned flasher output all the way down to start, and then gradually increased intensity. After standing in the dark in the basement for 15 minutes holding the flasher at all distances and angles, I found the sweet spot: on top of the box, with output at full intensity. And it works -- 80% of the time. These boxes were definitely designed for use in whole-house video distribution systems.

I just tried programming an MX-350 with the RNG110. Since it had the new remote, I learned everything in. Just to be on the safe side, I loaded up an MX-850 with the RNG200 codes.
Both remotes (Comcast, MX-850) work the box fine, but I cannot, in any way, get the 350 to learn Exit, page up and down and a few others. After 2 hours of trying EVERY freakin technique (and a few I just made up), I gave up and told the customer I would be back.
Every time Comcast comes out with a new box, I hope that they fix at least a FEW of the many issues. Nope. Not only did they not fix anything - it's worse and makes me look unprofessional. I've just about had it. I wish all the remote companies would get together and form an organization to dictate to the manufacturers on how to build product correctly. (pipe dream, I know).
That lady with the Hammer had it right!

Anybody else have a fix?

I once heard a guy that shot the factory RGN remote at a mirror, and learned the reflection.

After talking with the URC team, I got 2 suggestions; either bring the RNG box back and get an older one, or use one of the pc-programmable remotes. Since I was using the MX-350, I'm going to try an 850. I'll let people know how it went... (fingers crossed, animal sacrifice to the god, Murphy).

I am at a house and googled ir code for Comcast RNG110 and got your message here. I'm having the IDENTICAL problem; I finally got 'exit' to work; but I still don't have: 'menu', 'CH+', 'page+', 'page-', '2', and '5'. I brought out a second mx350, mx650, and now an 850 and I can't get the ir library code for this thing either. I guess I have to bring a diff't brand, but I noticed on google that a harmony remote was having the same issues....

Hi guys, Same exact issue here. In my case, basic system with a MRF260 and a MX350. Same dead buttons as Joe R mentions above, although I never got "exit" to work. If you take a look at the window of the cable box with a flashlight, you'll see that the eye is all the way to the left but it's set back and sits in a channel of plastic. Best spot for the flasher is directly on top. Honestly I don't think that it's the issue. It has something to do with the way the box sees the codes.

To start we used the standard comcast "110" code set that works on every other box. That gives you about 50% success. The rest of the buttons cannot be taught. Codes still don't work. Obviously its the same code set but the box must some how see it differently. I say that because there is no way that comcast would change remotes and then depend on there people to hand the correct remotes over. So the problem lies with universal communicating to the box.

By the way, the same issue is occurring with Harmony users, however they have seemed to solve the problem by learning the codes in "RAW" mode. Not sure what that means but apparently it's working.

Corporate crap again.

[Link: comcast.com]

OK - Comcast RNG110 HD boxand Harmony 550. What is the solution to lack of control? Where exactly is the IR receiver window in this box? Any tips?

RGN200 is codeset #113 in URC's database.

You may also look at the OCAP codes #120 & 123.

I had this issue on 2 different jobs. The first one the client is out of town so haven't made it back there. The second client I just ended up taking the Comcast box back and swapping it out for a DCT box. I have gone through 3 different remotes and even came off of RF and went to an IR receiver. When I went to the IR receiver we got nothing at all. As soon as the RNG box came out and the DCT went in everything worked 100% with no glitches, flitches, bugs or headaches. Thankfully the client was understanding but it really doesn't make us look good. I found room light to effect those boxes as well as if there were alot of different components on.

Just my $.02

i have diasasembled this box and the ir collectors(yes there are 2) are above the "rng110" logo on the right side if the curved face. one collector facing up and one facing forward. still no control.

Weird. I ran into one of these yesterday. No luck with preprogrammed codes, so I tried learning into an MX-450. Every code learned first time. No MRF in the system - it's in client's office and it's a straight shot direct IR.