I am having the same problem with my HR34. I posted a question about it a few weeks ago but never got an answer. When I view the details in history about why it failed, it has this message:
"This remote recording (serial#=xxxxxxxxxx) was canceled because another matching program was scheduled to record. (3011)"
"This remote recording (serial#=xxxxxxxxxx) was canceled because another matching program was scheduled to record. (3011)"