For the benefit of anyone following this thread

I have asked Helina if she can identify her cable modem/router.
The make/model should be on a label on the underside, failing that Orange (her provider) issued different devices to enable contact on the internet.
The link I provided gave help instructions for each (once identified) to set up the wireless connection that has been preventing Helina from using her laptop wireless free.
Untill this information is made available I am unable to assist.
I will now drop out of this thread untill such time as this information is available.
Regards Brian