On my computer ? how do i register my magicjack

Charl, contact magic Jack. Check the attached links,instruction and guides, Good luck
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VoIP Phone Service Internet Home Phone Service Providers magicJack
International VoIP Phone Service Customer Care Support magicJack
https://magicjack.custhelp.com/app/chat/chat_launch?MJLANGUAGE=es

I have had Magicjacks for Many Years now and I even us a free cell phone service call Freedom Pop. I you don't have the newest Magic jack please purchase it and then transfer your phone number to the new one. If you have the new Magicjack you can plug it directly into your router instead of in to the computer.
http://gethuman.com/phone-number/MagicJack/
Phone Number 561-594-9925
Talk to a Human
You get a recording, but do get to speak to an actual person. For billing matters only
Average Wait: 14 mins - Mon-Sat: 10am-7pm EST

http://gethuman.com/contact/MagicJack

Call customer support and make sure it is registered to the same device.

Go to http://www.magicjack.com/customercare.html. They can register your device, assign a phone number or port a number you already own.

Go to the magic jack website and update your adapter. Also try different USB ports and reboot your computer with magic jack connected. If the computer does not recognize the adapter, try disconnectin and reconnecting into different ports. There is a update option on magic jack website and tech support as well.

Without a computer:

1. Plug the magicJack into the power adapter that has been provided
2. Plug the Ethernet cord that has been provided into the magicJack
3. Plug the other end of the Ethernet cord into your modem our router
4. Plug a telephone into the magicJack
5. Plug the power adapter into a power outlet
6. Visit mjreg.com on your computer, tablet or smartphone
IMPORTANT: Your computer, tablet, or smartphone MUST be connected to the same network as the magicJack to be able to register
Item 6 is what you appear not to have done, in order to get dial tone.
Item I

It is the email address you used to register the magicjack in the first place.

To use without computer plug ethernet cord into magicjack otherend into router plug phone in to magicjack plus plug magic jack plus int power adapter plug power adapter into power outlet should work but does not no calls in or out in reverseorder and has to be online with internet conection .

Magicjack software is stored in the Magicjack module. Plug that module into a USB port on your computer. You should get an onscreen message like: "Install or run program from your media".
Click on "Start Magicjack". That will install the software on your computer.
More information at:
http://www.magicjack.com/how-it-works.html