Remote not working on my main box but works on the one in another room
tivo remotes dont "pair" - they are simple dumb IR remotes. Any tivo remote should work with any tivo, if aimed at the device
We have 2 remotes because they keep vanishing behind settee cushions and into other hiding places... either works once found - no pairing needed.
So check batteries and check line of sight to the IR detector on the TIVO box is not obscured.
V6 remotes are different - pretty sure those do have to be paired.
so is your problem with a pair of Tivo, or with a pair of V6 boxes ? or with one of each?