Adding second modem to Comcast ISP

Hi All,
I live in a two family house with one Comcast ISP connection (neighbors in basement apt, I live in upper part of the house) and the router is located in the basement. We've been having problems with connectivity and I want to add a second modem to our house so I can connect an old Linksys router I have.

Is this possible? I know the least complicated (but most labor-intensive) way is to run CAT 5 wire from the first router to the second, but I don't want to have to drill holes in the floor of our rental house. Every room in the house has a coax jack and I'd like to connect one of those to a modem and router I have, so we can have a more reliable connection.

Anyone have experience with this?
 
Your post is not clear on what the problem is you're experiencing, so we can't be sure what's going on... but I'm inferring you're having wireless connectivity problems. With that in mind...

A second modem is going to mean a second bill from Comcast -- that's probably not what you want.

I feel like the only crackpot that recommends this approach, but have you looked into powerline network solutions? They used to be terrible over several years ago, but they are rock solid now and perform well.

Powerline network converters work *very* well in most homes, aka. Homeplug and Homeplug AV. As long as both families share the same fuse box and your building is *more* than several years old, you should have zero problems.

It basically consists of a converter that plugs into an outlet and connects to your router via a network cable. It essentially turns your home's power grid into a network. Go into any room with an outlet and plug in the second converter, pair them up and voila -- instant network with no running cables or drilling holes. You can add several converters and/or even get wireless ones too.

Here's some great reading for you:

FAQ
http://www.smallnetbuilder.com/lanwan/lanwan-basics/31585-smallnetbuilders-powerline-faq

AV 200 round up (recommended for most people -- theoretically 200Mbps)
http://www.smallnetbuilder.com/lanw...-homeplug-av-adapter-roundup?showall=&start=5

AV 500 round up (the best -- theoretically 500Mbps)
http://www.smallnetbuilder.com/lanwan/lanwan-reviews/31624-homeplug-av-500-adapter-roundup

I've personally installed several Netgear and Dlink variants and both have performed well with no problems. Kits start around $50. Wireless kits are about $80.

Also, if wireless is your problem, you may be able alleviate your issues by upgrading from 802.11b/g to 802.11n or moving from 2.4GHz to 5GHz. Those suggests often require upgrades on client computers (new wifi cards for your laptops/desktops) and/or a new wireless router. Just some thoughts.

You may also be having Internet problems etc.. which is why I suggest you collect some more information and share it with us.
 
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