splitting a cable connection too many times on it's way to a device (be it a TV or modem), often times degrades the signal. I had my cable installer run a single line from the outside wall to my cable modem and a separate cable to be split among the various TVs in the house.
In many cases you can get away with a split or two, only trial and error will tell.
All of the other answers to your questions lie in your routers manual. Don't be afraid to peruse it.
PS, my modem's on all the time.
Hello, I am planning to setup cable internet at my house, and I'm going to share the connection between 2 computers. (One runs Windows XP home, the other is XP Pro)
First, I have a question for anyone who knows - I am planning to setup the cable modem in a room that already has cable tv in it. Can I split the cable signal coming from the wall, and run one cable to my modem and another cable to my TV? Can I use the internet and watch TV in this room at the same time?
Alright, here's my plan:
1. Split cable signal from wall into two signals.
2. Send one signal to TV, other to cable modem.
3. Hook up cable modem to a wireless router (with Wireless access point). ***Any router recommendations?
4. Buy two USB wireless adapters - one for each PC. (Should I install my USB adapters first? Then the router?)
5. Configure the USB adapters to work with router.
6. Securing network.
Also, what do you think: leave the modem running all the time, even when PC's are off?