I have an ebook notebok with wifi and a home cable modem how do i start the connection

what OS, we can NOT GUESS your operating system.
so where are you , home or star bucks.?
what is your connection, wifi, ethernet, or others?
a desktop pc can have vast ways to get internet.

1: modem dial up (i bet not this, nobody uses this now, 99.9)
2: cable modem, sat modem, fiber modem to ISP
3: USB wifi dongle, on PC and to local router.
4: PCI card wifi. , to router.
5: ethernet wired to router or modem direct. a cable wire. CAT5/6

one can even have direct wired ethernet to the cable modem
or you might have wired to wifi router (2 ways to connect there)

NO OS stated
no connections stated.

my guess is DCS, means DHCP not found, or DNS not found.
lots of causes, but I will not attempt to answer for all 6 ways.
sorry

Modem- connects to incoming cable or phone line, it creates a connection between the internet your computer or other internet using items.

Router- splits up the connection to the internet to share it with multiple computers, TV's, cell phones, ect. Can be wired or wireless (wifi)

Wifi- wireless connection, it's always a router too because multiple devices work with it.

Now here's the confusing part, you can get any combination in one modem.
Cable modem, no router, no wifi, just hooks up to one wired device.
Cable modem, with router, no wifi, usually can hook up to 4 wired devices.
Cable modem, with router, with wifi, can have 1 to 4 wired devices and has wifi which can connect to hundreds of devices.
You can also get Cable modems with phone connections they use the internet service to connect to the phone system.

To activate the wifi, you usually need one computer to change the settings to set a name and password for your wifi. Then all your other devices will have to be connected to that named signal and use that password to set them up.

You can download ebooks to your tablet for reading offline. But the data rates for downloading the books still apply unless connected to wifi. Free Wifi is available at most fast food stores, libraries, and hotels. You can use these places to connect and download ebooks then read them at home.
It is also a good idea to turn on airplane mode whenever you do not want your device to use data as other applications (System updates, facebook, amazon apps, etc) will also use data even when they are not open on your screen, many will continue to run in the background.

Hi. Let's hava look at what you are doing.

I'm guessing that you have a cable modem a dlink router with wifi and a computer, right?
If you connect the cable modem to the computer you have internet. You shouild also have wfi but the wifi will not give you internet because it is disconnected from the modem.
The Dlink has to be connected to the modem but it will also need to be configured. To *** that you will need help from your cable company.
The connections should be. Modem connected to the outside world. Dlink connected to the Modem. Computer connected to the Dlink by either wifi or Ethernet.

How are you connected?
Cable Modem?
Wifi at home?
Wifi at a public location?
Wired?

You have two choices to achieve your goal (which I understand is to have both you desktop plugged by Ethernet and WiFi throughout your home) :

1. The cheapest way :
You need not be replacing your cable modem, but adding a router to it. There are numerous routers which are WiFi enabled. You can then plug your PC to the router and have WiFi.

2. The cleanest (but less cheap) way :
There are cable modems on the market which will do the job, like the Motorola SURFboard SBG900 DOCSIS 2.0 Wireless Cable Modem. Once plugged in place of your old modem, depending on your provider, you will either have to download and install the software for your new modem (which should be prompted on your PC when you try to access the Internet), or call the provider to activate the new modem.

you can check if the ethercable is loose or if you have a spare ethernet cable (rj45) you can replace the one that youre using

Try buying a wifi router. That way, your ebook (which has built in wifi adapter) and what ever it is you're using now (another ebook/laptop/desktop) can connect to the internet at the same time.

Could be a variety of reasons.
Assuming you have not had it working before
Assuming the wifi is broadcasting it SSID
Assuming you have laptop connected by ethernet cable to hub:

Assuming you have XP:

Go to start/control panel/network connections/right click the wireless lan icon and select properties/select wireless connections and delete ALL previous entries.

With Vista go:start globe then

Control Panel\Network and Sharing\Manage Wireless Networks and delete all entries

Now:

press windows key and R
type cmd and enter
type ipconfig and enter
note lower set of figures ie 192.168.0.1
open browser and type in those figures and enter
should now open router firmware
When asked for log in use defaults of admin - admin or admin - password

navigate to wireless security and set encryption to WEP 64bit and create a simple encryption code - save settings

Change broadcast channel to 8

make sure wifi is set to open and not shared

Save all settings, allow hub to reboot and now see what happens