Belkin f5d7632-4 adsl modem router connection problems?

I have done as it says in the man ual and it still says no connection in red. i have also downloaded a firmware update and after i had done this it connected to the internet. unfortunatly i accidently pressed disconnect and now how ever man y different firmware updates i try i cant reconnect to the internet. can anyone help me?
Answer
Search the firmware download page for alternative versions of it is firmware.i found 4 different firmware versions for a router i once configured for someone. i just tried to upload each one to the router one-at-a-time until one (or more) worked. (that was a belkin also)hope it helps.