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Welcome!What HW version is the DWA?
Wireless Configurations- What wireless modes are you using?
- 2.4Ghz and 5Ghz routers: Try single mode G or N or mixed G and N on 2.4Ghz and single mode N on 5Ghz?
- What security mode are you using? Preferred security is WPA-Personal. WPA2/AES Only.
As a test, disable Wifi security on the 5Ghz radio, does the DWA connect to the Internet then?
Ensure you are using the latest drivers from the main site for the DWA.
Ensure that your laptops chipset or USB drivers are up to date...