P70 No pilot error and mode page blank

[rlschmidt]

The system working lasted less then 4 min when I was able to get the software versions, and nothing has been recognized since either from the C90W or the P70r.
I put the external power cable on and confirmed via the P70 that it was working. I then removed everything from the distribution except the EV1 and the C90W and tried the upgrade, and the C90 is not finding the EV1 on the network.
The next thing I tried was to move the EV1 and the C90W to the local distribution using only black and white cables, and the C90 still did not see the EV1. I then tried removing the EV1 and connected the P70r to the black white distribution, and neither the C90W or the P70r recognized each other. Assuming that connecting only to the local distribution is valid, I am not sure there is anything else I can do to eliminate cabling issues.
Did this approach make sense?

Thanks
Bob Schmidt