I will try to describe my set up as accurately as possible. I have tried a lot of things with no luck.
I have the coax cable from the wall going into the moca port of a wf803m. I have another cable going from the TV port into the back of my arris surfboard modem/router. I think have an ethernet cord connecting from the router to that same wf803m. If it matters, I also have an additional, bigger linksys router connected to the Arris. I can verify that I am definitely getting signal into the arris, and it transmits out (I get wired signal on a Nintendo switch directly connected to the arris, and wireless signal via the linksys). This moca device has the power light on and the LAN light blinking.
In a different room, I have a coax cable connected to the moca port of a different wf803m, and an ethernet cord from the moca to the back of my TV. This device also has a solid green power light and blinking LAM light. I do not get successful wired signal to this TV, or any other device plugged in.
I do not understand what else needs to be fixed. Any help would be tremendously appreciated.
Previously I had my router and wired connection connected to the other of these two rooms and had signal, which makes me think the they are both receiving the same signal from the street. And makes all of this confusing.
I assumed the wiring in my house was a single coax coming into the house from the street, hitting a splitter, and room A was one side of it and room B was the other side of it. If that were true, would the connection be working as is? What are you suggesting the wiring looks like instead of that? Are you suggesting there is a splitter and then another splitter, or that they may be coming in from two separate sources off the street (which seems unlikely), or something else?
Please check the splitter in your house. Make sure the caoxial cables from the two MoCA adapters are connected to the same splitter.
Looks like the cable ISP likes to skip the splitter, They only connect their cable modem to the cable from street directly.
You can connect all the caoxial cables to the splitter. Then they should can work.