Yes, Another MOCA Network Loser

You need to read the first post in this thread:
http://www.tivocommunity.com/tivo-vb/showthread.php?t=501722

Is the Roamio Pro connected to the router with an Ethernet cable?

• If so you do not need any MoCA Adapters, just enable Ethernet+MoCA on the Roamio Pro. Select "Use this DVR to create a MoCA network"
  
  ================================
• If not, then you need just 1 MoCA adapter, (one at the router) but do not Select "Use this DVR to create a MoCA network" on the Roamio Pro, instead Select "Connect using MoCA" You do not want two devices creating two MoCA networks.
  

If you have a Cisco Tuning Adapter and you are not using a splitter the TA is blocking the Roamio Pro's MoCA signal. TA needs to be cabled like the following and you need a POE filter in front of the TA.
http://media.cox.com/support/print_...er_guides/cable_box/InstallingYourCiscoTA.pdf

If the Signal Amp is not MoCA Bi-Directional and it sits between any device that transmits or receives MoCA that is blocking the MoCA signal.

 

Hi,
+1 for recommendations from CoxInPHX.
What we are missing is an understanding of how your home is wired and where the amp is located as well as what type of amp it is. Is it a one in, one out type or one in with multiple out ports. Does it have a make, model #, is there any mention of "MoCA" on it? All non MoCA bypass amps will kill any MoCA network trying to pass data through them. The worst are the standard multiport ones because they usually cannot be used at all. The best location for any amp, by the way, is as close to the main feed coming into the house as possible. The 3GHz splitters were not the best choice but will probably work ok. There are true "MoCA rated" splitters available which are designed to pass MoCA frequencies in the most efficient manner.
If your Roamio is close enough, you should run an ethernet cable directly to your router, if not then setup a MoCA adapter near the router and enable MoCA on the Roamio. You don't need another adapter for the Mini just enable MoCA as directed.
The most likely problem you are having is with the type and placement of the amp from TWC. You can buy MoCA bypass amps but you might be able to get one from TWC for free???
You most likely will need more than one POE/ WholeHome DVR filter, one on the main feed/ input to your home at the first splitter and at least one more for your TA. Below are some links to any and all equipment you are likely to need.
Verizon
https://www.verizon.com/home/fios-accessories/
Amazon
http://www.amazon.com/s/ref=nb_sb_s...=moca+splitter&sprefix=moca+s,electronics,188
Tech Tool Supply
http://www.techtoolsupply.com/SearchResults.asp?Search=catv+moca+rated

http://pctcorporate.com/products-main/hfc-networks/amplifiers/moca-bypass-amplifiers.html

http://www.ebay.com/itm/5-Pieces-Mo...596?pt=LH_DefaultDomain_0&hash=item2344277b9c

 

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The Mini off eBay - There is no way for the previous owner to remove it from their account. You just need to call TiVo and give them the TSN# on the bottom and ask them to move it to your account.

EDIT: Are you saying that you cannot even get a network connection to run Guided Set-Up on the new Mini?
If so not sure what to do, except move it temporarily to the router and use an Ethernet cable to run Guided set-up, assuming you have a Monitor with an HDMI port near your router.

You will have to Run Guided set-up on the Mini, which you have probably already done. And activate it on the TiVo website.

Make several Network connections to TiVo from both the Mini and the Roamio. Reboots may be required.
Make sure the DVR Host is selected In Settings on the Mini
It may take 24 hours for the Mini to see the Roamio, but it really should not, if you make those Network connections and reboot both devices.

 

I don't see the harm in returning your newest Mini to Best Buy, giving the MoCA issue as the reason; then pick-up another and give it a try at the same location where the old/eBay Mini worked. It *could* be a bad Mini.

edit: Another option is to test the Mini by putting it as near your Roamio Pro as possible. As a test, temporarily put a compatible 1x2 coax splitter in front of the Roamio Pro and connect 1 output to the Roamio Pro and the other to the Mini -- then see if the Mini can connect to the MoCA network. If it can, then your issue is likely with your coax network layout (cables, splitters, amp, PoE filters); if it cannot, it could be the Mini or the network.

 

Depending on the software version the new mini shipped with, it could be the problem. When I set up my mini last fall, it realllllly didn't like moca for guided setup until it got it's software updated.