Here is my set up.
I have 2 XL4's, one Tivo HD, and 1 Roamio Pro. They all connect to each other, to the network and handle room to room transfers well.
I just bought a new Roamio from TiVo.com It was delivered on Tuesday. I installed it on Tuesday, activated my new unit on TiVo.com, and paired the cable card on Tuesday. Waiting 24 hours, Wednesday night, I forced a connection on all my units and afterwards I restarted all units. I then went on TiVo.com and used the season pass manager to transfer passes to the new Roamio. (it worked great).
1 XL4 wired connection (signal strength 100%)
1 XL4 connected wirelessly (signal strength 82%)
1 Roamio connected wirelessly (signal strength 77%)
New Roamio connected wirelessly (signal strength 24%)
The new Roamio can "see" the other TiVo's in the network under "My Shows", but they are "orange exclamation point" "!"... and gives me a "cant connect c423 error". I called TiVo and they forced a connection to all my units on their end, and said to call back in 30 minutes. I went to sleep.
10 hours later - still the same problem. Before I call tech support, does anyone have a suggestion on how to resolve this?
I just checked my wireless signal on the Roamio settings - it is at 24 % (marginal). even though its 3 feet from the router ?? Would that be the cause of the issue?