laptop kills my wifi connection WNR2000

Not sure where to post this, so if not the right place please direct me.

I bought a Dell laptop within the last month off QVC and whenever I start/restart the computer the laptop connects to my Netgear N300 wireless router (model number WNR2000) and kills it to where the laptop can't connect and our phones and ipad get booted off the network. I think need to go and turn off the router and turn it back on and things stay connected. But if I shut down the computer and restart it, boom it kills everything again. The router is less than a year old and the laptop is less than a month. Any help would be appreciated.