Unable to see preferred wireless network unless adapter is reset

Hi
I am having a fairly regular problem with my Samsung NP300E5C laptop.

I cannot see my home wireless network unless I open device manager and disable, then re-enable my Atheros Network Adapter.

Interestingly I also found that I have encountered this problem with a public WiFi hotspot that I use regularly. This was also resolved by resetting the wireless adapter.

Steps taken to resolve:
Tried to find a more recent Atheros driver, no luck.

Boot from cold, problem does not occur.
Boot from "Sleep" problem does occur (but not every time).

Adapter = Atheros AR9485WB-EG on PCI Bus1
The driver version is 9.2.0.470

I have attached my DXDIAG output.

Also attached before and after adapter reset images.

My router is made by Thompson Telecom and supplied by O2 here in the UK:

WiFi Configuration
====================================
Interface Enabled: Yes
Power Reduction Enabled: No
Physical Address: (removed)
Network Name (SSID): anon-e-mouse
Interface Type: 802.11b/g/n
Actual Speed [Mbps]: 65
Band: 2.4GHz
Security Mode: WPA-PSK

From what I can see here, I probably should fix the interface to g but otherwise I am really beaten by this problem.

Any help much appreciated and any further info please ask

Attached Thumbnails

   

Attached Files

DxDiag.txt (35.0 KB)