Internet only connects with ethernet cable on windows 7

Hello,
I have a new ish Dell laptop with Windows 7
We recently got a new router in our house however it will connect wirelessly only eith ethernet cable.
The other laptops in my house work fine but not mine!!
Mine is the newest
Every now and again if i reset the box it works but only for 1 minute.
I have tried most common testing I've seen on my laptop and used my suppliers handbook etc.. and nothing
HELP
2 answers Last reply
More about internet connects ethernet cable windows
  1. What router and what wireless card is in your laptop? (or what is the Service Tag on the bottom and it can be looked up)
  2. thank you for the reply, sorry for the delay.
    I have a D-link router by talktalk (uk) DSL-2680
    Wireless card 7FNGPR1 is my service tag

    Thanks
    Kat
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