fisticuffs wrote:You should never have to turn your modem off when not in use.
No point in leaving it on when you're not accessing the internet (not talking about unplugging it)
. Why waste the electricity?
Doesn't hurt to turn it off, but if you're an internet addict, that 30 sec of boot time is a killer.
Always turn the modem on before you turn on the router, so it has time to get an IP, before the Router pings it for one.
The ethernet signal from the cable modem will be split by the router, much like a power strip does for electricity. However, you're distributing data packets, not electricity, hence the need for the router. Now you can route the signal to several components, thus sharing the bandwidth of the single cable modem connection, and like amperage on an electrical circuit it's finite. If you're only using one thing at a time, you'll have no problems with speed, but if you're doing some serious downloading, the other connections will be slower.
Wireless connections tend to be about 1/2 as fast as a wired connection due to signal loss, but it's fast enough for most people. I play a couple of on-line games over a wireless connection, and it's just fine.
The cable company supplies you with a unique "global" IP address to the outside world for your Modem, the router creates unique IP addresses for your internal connections, that it can map back to the cable modem IP address, keeping data organized and sent to the correct connection.
That's how it knows that it's the PC downloading music and the X-box uploading gamer statistics and sends the data to the right place.