Hopefully the tech can find the problem, as this isn't how SWiM should be working.
Cable problems or a bad PI may be the cause.
The DECA has three LEDs which if all are green is the only test you can do without having a H/HR24 or higher than have DECA internally [which give a menu to check the status of the DECA network].
SWiM & DECA don't interact at all. DECA simply needs SWiM to free up the frequency band that DECA uses.
There was a splitter that split a coax line and then wen to one HD-DVR and to the broadband adaptor. Tech is moving that and running a new line.
There was also a phantom coax on the main 8 way splitter that ran to a bedroom where no box is used, that was removed.
After a reboot the HD box saw the other DVRs, but that fixed the problem last time.
Before Tech leaves I will record 4 shows, have all tuners in use and see if I can replicate the problem.
I guess we'll see what happens.