I got a Dell 15r last week to replace my old laptop and I just can't connect to our house's wifi. It sees the network fine, but I just get "Windows cannot connect to x". Now at first we just called tech support, but they suggested to plug it into our router through ethernet and update the drivers. We did, and it automatically connected to the network fine. The second we hung up the phone, the problems came back. Turns out that it will connect when its within 2mof the router. Any further and it just won't connect. I've forum surfed for hours trying everything that other people with similar symptoms had, I've altered all of the adapter settings (they're back to default now, I haven't screwed anything up) and I've tried on the router's side too, but still nothing.
I took it around a friend's house to see if it was my router, but it does exactly the same thing at his house. Works fine at extremely close range, but nowhere else. He lent me a usb dongle wifi receiver and that connects fine (range isn't as good though). Any suggestions? Do I need to get Dell to fix the card/replace the laptop?
I'm sorry for the essay, but I just wanted to make sure that you got every detail.
Forgot to add, laptop's wireless card is the Intel 1000 BGN and the router is the O2 Wireless Box II (Thomson SpeedTouch TG585 v7 I think)