@Juliafoo : Do the channels change properly when you use the Rogers remote? Sometimes if commands are "slow to take" the box (system) may be busy doing other things. This is especially true when you are new and the system is doing lots of background configuring, etc.
@Juliafoo : Please answer the first question in post 564, which responded to your similar questions in post 563. Sometimes certain remotes/equipment may have issues with IR interference. Check out the following thread on the topic.
@Juliafoo wrote:
...I also have some old IR Extenders that I am not sure what they are connected to but are hanging down behind the stereo equipment flashing away at all times.
If the extenders are not used any more, please unplug them. That may be enough. As mentioned in my link, extenders are very prone to IR interference. If that doesn't work, try turning off the TV and change channels on Rogers. See if the channel changes properly by powering the TV back on to the new channel. Leave the TV off for a minute so that any stray IR from the TV dissipates before testing the channel changes. Good luck. As noted in the link, there are lots of possibilities for IR interference and you need to rule them out one at a time.
You can also try getting really close to the Rogers box with the Harmony to see if that helps - another indication that the frequencies are correct, but that something is blocking the proper signal, or enhancing the signal so that two signals are "heard" as in your example of channel 447766....
