Why cant i have 2 modems?

Olex__

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Aug 8, 2017
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My provider tells me that i cannot have 2 modems in my house since it would require a separate bill since it would be a separate line. I already have 2 coax cables that i can connect to the modems, which come from 1 single line that is then split with a splitter in my garage. Both coax cables work with the service-provider provided modem, but it doesnt work with my own. I DONT WANT TO run ethernet across the stairs and half my house. How do i solve this problem? Can i just spoof my 2nd modem's serial and mac? Or will it not work?
 

USAFRet

Titan
Moderator
Your ISP serves up one and only one IP address, to one device (a modem), per account.
If you want a second, that requires a second account. $$$

2 "modems" is not what you want.

What you seem to be looking for is other WiFi access points across the house.
If you have actual coax cable throughout the house, you can use MOCA devices. These pump the ethernet signal through the house coax.

Or, powerline devices. These pump the ethernet signal through the house wiring.
 
Another way to look at this is...

There is a WAN side and a LAN side (on the modem).

U cannot mess with the WAN side without paying more. U can do whatever your heart's desire on the LAN side, and am thinking MOCA as already mentioned.

MOCA adapters are not free but at least it's a one-time expense.
 

Olex__

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Aug 8, 2017
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Powerline doesnt work in my house properly, MOCA is too expensive. Is there a way to set up one router as a repeater without having to connect them via ethernet? So like i have my modem+wifi router in the basement, and another router upstairs ?
 

Olex__

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i get the signal all the way to the third floor just by using 1 router(just phones drop <5mbps), so that will not be a problem. Is there a link on how to achieve that? I only found a way to do it using ethernet. I have an apache c20 router and a rogers cgn3 router.
 

asoroka

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Apr 19, 2009
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It will depend on your router, whether it can be switched to AP mode or extender mode.

You will have to look at the manuals/set up pages.

If you have dual band routers, you can use one band for the backbone (instead of ethernet cable).

https://www.linksys.com/us/r/resource-center/what-is-a-wifi-access-point/
https://www.linksys.com/us/r/what-is-a-wifi-access-point/what-is-a-wifi-range-extender/


 
They don't care about your LAN. So trying to get ethernet in multiple rooms is your problem.
If your line isn't maxed then to them there is no reason to come out there and hook another modem up.

A home repair person or something can likely make the runs for you. Even if they aren't familiar with networking you can DIY that side of it.