Make sure the remotes are RF remotes, you can tell by the FCC sticker on back. And that you are using the right 6 digits of RID #. Try it with me, with receiver and remote in IR mode, enter the menu of the receiver:
1. menu> parental, fav's, & setup> system setup> remote> IR/RF>
2. you will see either IR or RF, tap whichever to reveal both
3. press RF or RF & DONE, the remote won't work any longer, this is important, if still controls the receiver you have done something wrong. If doesn't control the receiver, do the following on the RF remote:
a) dtv
b) press and hold MUTE & SELECT for two blinks
c) enter 9 6 1
d) press CH UP
e) enter the last 6 digits of the receiver ID #, found on a sticker in the access card compartment
f) press SELECT