Splitting optimum coaxial cable for a second access point for LAN only

[ryangladden3]

I have optimum cable. I have one coaxial cable connected to the modem on the second floor of a three story house. The wireless router is also connected to the modem in the same room. My issue is LAN cables cannot go through walls or doors, I am renting. I wish to add a router to the top floor for computer, tv and xbox to negate drilling holes etc. There is a coaxial cable running to a cable box on the top floor. My question is it possible to split the coaxial cable on the top floor for the cable box and a second router that would give me LAN connections for the top floor. No wifi is needed for the second router on the top floor I only need 3 LAN connections, if it were possible more than 3 connections would be nice.

Thanks,
Ryan

 

[USAFRet]

I wish to add a router to the top floor for computer, tv and xbox

Nope. Not gonna happen.
Your ISP delivers one and only one IP address, to your modem on the second floor. That modem then talks to one and only one router.

To enable a second modem/router, you'd need to get a whole second account, for twice the money.

 

[bill001g]

You might be able to use the coax cable to run MoCA adapters. It is going to partially depend where your splitters are. You would attach the lan port from your router to one moca device and then connect a second AP to the moca on the other end of the cable. These devices have issues with home dvr systems and some cable modem so be sure to read all the fine print when you are looking at them. These tend to be kinda expensive compared to other network equipment.

 

[USAFRet]

I have a MoCA adapter to route ethernet signal upstairs through the coax. Works quite well, actually. With a 50/50mbps FiOS line, I see zero difference between connected to the MoCA and connected directly to the router.
If I had to buy one for for both ends, somewhat more expensive than a powerline setup.

The FiOS installer guy gave me this for free. Apparently I'm a nice guy.

 

[ryangladden3]

So there is no such thing as a Coaxial to Ethernet adapter? Assuming there is, my theory is to convert coaxial to ethernet and use a LAN switch box for my three devices. I have been told that there is no such adapter...

Second option.
Could I move the modem to the third floor using the coaxial splitter? To keep the cable box line intact creating a new line for the modem.. then use a LAN switch box to my three devices and the router which I can position to remain on the second floor to maintain an efficient wifi signal.

 

[ryangladden3]

Thank you all, very helpful and fast responses. My mother and landlord are making this quite the headache.

 

[USAFRet]

So there is no such thing as a Coaxial to Ethernet adapter? Assuming there is, my theory is to convert coaxial to ethernet and use a LAN switch box for my three devices. I have been told that there is no such adapter...

Yes there is. MoCA adapter. But you can't use that to add a second router. The ISP will only serve an IP address to one and only one router.

main router -> MoCA device -> coax cable -> other MoCA device -> PC

Or, to add other ethernet on the second floor, look at powerline devices. Sends the same signal through the house wiring.

 

[ryangladden3]

The mapping I had in mind was

Third floor
Coax cable (To TV is split) -> Coax-Ethernet MoCA device ((2nd on splitter)) -> LAN switch 4 port (depending on cost of a MoCA device with 4 ethernet ports) -> PC/TV/Xbox

Second floor
Modem and Router untouched

Is this possible? Excuse me if you have already said something to that effect. I'm still learning networking and am unfamiliar with the terminology and the devices

 

[USAFRet]

How does everything come into the house?
All on the coax? If so, then your concept may work.

If not....
Then behind the router....MoCA device -> coax cable -> MoCA device elsewhere -> switch -> devices.

The MoCA devices are simply to convert an ethernet signal into something transmitted over coax, and then at the other end, back out to ethernet.
Similar to what powerline devices do, except coax vs house wiring.

 

[ryangladden3]

I believe with optimum cable it is all coaxial cable. I noticed most MoCA adapters have a cable in/cable out inputs. I would be looking to just connect one coax line in converting that line to ethernet. Given that, that is possible I believe I have found a solution.