Hello all,

Long time member but mostly lurker.

My brother in law asked me to try to get his AV simplified by utilizing a Universal Remote.
Since I'm very familiar with the MX450, I purchased one for him.
I've got all his gear up and working except his Xfinity Box, which is a Cisco RNG150N.

First I tried to find it in the database with no luck.
Then I tried to teach the MX450 with his Xfinity remote, which would not take the codes.
Then I searched here and found some Phillips codes which i downloaded into my Pronto and taught the MX450.

These seem to work but not through the MRF350, which is really weird.
I also tried these codes through an IR extender. Still no luck.
If I aim the MX450 right at the Cisco box, the commands work.

Is there any solution to this problem? Is there another Xfinity box that he can get that will be compatible with the URC MX450?

Any help is greatly appreciated!!!