Posted 17 September 2012 - 16:29
Just because 1 wireless device connects does not mean another can.
Lets see, just some off the top reasons why one device could connect an another might not.
N network on 5.0ghz, device running G or only supports 2.4
Network setup for G only, device is only B
Any sort of strange combination of the above.
Network is WPA2, device does not support WPA2
Network is WPA/WPA2 AES, devices only supports WPA tkip.
Mac Filtering on the Wireless AP/Router
User does not know the PSK/WEP, or not putting it in correctly - ie supplicant does not convert say ascii key to hex correctly. Try using the actual KEY!
Problems with security settings on router/ap that client just doesn't like on that hardware vs its - compatibility issues, etc.
etc.. etc.. etc..
happy to help but your going to have to give some actual details to work with.
What router, what clients? What supplicant - built in from maker of the usb dongle? What encryption set, is it N,G,B,A,AC are we on 2.4 or 5? etc.. etc..
And as sc302 stated - maybe the dongle died? Can the dongle connect to any other wireless networks without issue?