Cant find specific Wifi Network but works fine with other devices.

So I am attempting to connect to the wifi network at my girlfriends place, which I have done fine previously, but my laptop cant find it at all. I have tried restrarting my laptop, installing new drivers for the atheros wireless adaptor, resetting the router, but it still wont show up. It connects fine to other (older and newer) devices, and works fine when connected via ethernet cable, but it is hardly practical to sit on top of the router all day.

My laptop detects other networks fine, such as those of the neighbors and connects to my own home network fine. I have also tried deleting the saved network and manually connecting to the network while also checking the box about connecting even if the network is not broadcasting its SSID. Still nothing. I also checked power management settings and made sure it the network adaptor was using max performance power settings.

Previously when I set up their router, it was broadcasting on a single channel between 1 and 11, cant remember exactly which, and I have no reason to believe they have changed it.

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Home Premium, Service Pack 1, 64 bit
Processor: Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz, Intel64 Family 6 Model 42 Stepping 7
Processor Count: 8
RAM: 4077 Mb
Graphics Card: NVIDIA GeForce GT 525M, -2048 Mb
Hard Drives: C: Total - 595264 MB, Free - 446659 MB;
Motherboard: Intel Corp., Base Board Product Name
Antivirus: Microsoft Security Essentials, Updated and Enabled


Xirrus screenshot attached.

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