Persistent Wireless Disconnection From New Computer Only At Home?

Oct 19, 2011

I've just got a BRAND NEW HP dv7-6197ca

Specs: Windows 7 64 bit
Processor: Intel i7-2360QM 2.0 Ghz with Turbo boost technology
RAM: 8GB DDR3
Graphics: Radeon HD 6770m 1GB
Storage: 2 x 500 GB 7200rpm
Network Interface: Integrated 10/100/1000 Gigabit Ethernet LAN
Wireless: Wireless LAN 802.11 b/g/n. Bluetooth wireless networking with WiDi

So problem is with persistent disconnection from my landlord's wireless hotspot. The usual exclamation mark at the wireless bar indicating that I'm connected to the network but I don't get internet access...I've got the computer checked up by STAPLES where I bought it and everything was in perfect shape, network card fully functional... I mean it is brand new. They even reformatted the computer and installed clean Windows 7 with no crap software in it...I brought the computer to school and internet works FLAWLESSLY. Disgustingly fast.The problem is only when I'm at home where my internet would work fine for say 5 mins and then the exclamation mark will pop at the wireless bar and I would lose internet access for half an hour or more. I would get the access back and then it would disconnect again.

I called my ISP and they suggested to change my wireless channel to a unique # say channel 11 from 1-11. Turns out the wireless channel already is on 11... I then got it changed to 1 by my landlord. Still same situation. We then tried to change the wireless security encryption (e.g WPA-personal to WPA2). My computer can't connect in that case...On a side note I do have an older laptop (~7 years old), the one I had before purchasing this new computer. This old laptop can connect to the wireless and work PERFECTLY.

So the problem happens only with this new computer, and only at home. I'm completely clueless as to what the problem might be. It looks like some kind of interference but I've tried changing wireless channel (from 11 to 1) which didn't get rid of the persistent disconnection. Could it be interference with another computer that's using the same wireless hotspot in the house?

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