I just switched broadband providers and they switched out my surfboard SB6121 to an Arris TM1602. Now my laptop won't connect., no matter what I do..
I tried resetting the modem/router,, uninstalling/reinstalling the Dell Wireless WLAN 1501 Half Mini-Card Driver, removing/readding the SSID etc etc... This is driving me freakin banannas..
You stated you had a new Gateway. You do not have a Wireless router but are using the Gateway Wireless? If you are using the Gateway wireless, that does cost extra, if I remember correctly.
You do not state which OS you are using but can you check the status of the laptop and check what IP addresses it might be using?
Are the lights on the Gateway on as they should be?