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See my image for my detailed setup. I researched for hours online trying to figure out how to set up cable internet with MoCA and OTA (over the air) antenna but never got any clear answers. I saw many diagrams but none fit my setup or explained it well. So I spent hours trying many different configurations and figure out some details. First, here is a list of the inputs I was trying to network/route: - Internet only from provider Comcast (NO cable TV) - MoCA - OTA antenna I have ONLY internet coming from the provider into my house (I have no channels coming through cable TV). My router and cable modem are on the second floor with my computer but I wanted to have wired internet for all my streaming devices in the basement. Also, I wanted to use an OTA antenna but the TV (TiVo) was in the basement and I had better reception with the antenna on the second floor. I am renting the house and it only has Coax cables running through the house so I had to do this with only the Coax cables that were installed. What I discovered from my experimenting and what was not mentioned on any forums is the following: The Comcast internet signal (internet only from my provider) coming into my house shared a similar frequency as the OTA antenna. I could not have both of these signals crossing the same coax cable at the same time. The MoCA network signal and Comcast internet signal could exist on the same coax cable (which is required for setting up the MoCA). So I first set up the MoCA network. I now had the MoCA network signal (which contains the internet) AND the Comcast internet signal (internet only, no cable TV signal) on the Coax cable network. I then wanted to send only the MoCA network and the OTA signal to my TV (TiVo box). This is only possible if I remove the Comcast internet signal and replace it with the OTA signal. So I used a diplexer to solve this problem. I took one of the Coax cables coming from the splitter (see diagram) which contained both the MoCA and Comcast internet signal and plugged it into the SAT input of the diplexer. What this does is removed the Comcast internet signal and allow only the MoCA signal to pass through. Next, I connect the OTA antenna to the VHF/UHF input of the same diplexer. There is now a combined signal of the MoCA and OTA antenna going out of the diplexer. Run a coax cable from the output of the diplexer to the input of the MoCA device. Now you have the OTA signal coming out of the coax on the MoCA adapter and internet coming out of the ethernet port of the MoCA adapter. Again, let me state this clearly. If you have Cable TV coming from your provider this will NOT work. This will work if you are receiving ONLY internet from your provider. My setup (see image): Antenna: ClearStream Eclipse Amplified Indoor HDTV Antenna with Sure Grip Technology - 50 Mile Range MoCA: Actiontec Bonded MoCA 2.0 Ethernet to Coax Adapter (ECB6200S02) Diplexer: Pack of 2- Holland Dishpro Satellite Diplexer - Dish Approved 2 amp version Splitter: BAMF 4-Way Coax Cable Splitter Bi-Directional MoCA 5-2300MHz Switch: NETGEAR 8-Port Gigabit Ethernet 10/100/1000Mbps Switch (GS308) POE: Filter, MoCA "POE" Filter for Cable TV Coaxial Networking ONLY Router: ASUS (RT-AC68U) Wireless-AC1900 Dual-Band Gigabit Router Modem: ARRIS SURFboard SB6141 DOCSIS 3.0 Cable Modem - Retail Packaging - White