I have a Dell Inspiron 6000 Laptop, the intel 2200bg wireless card and the WRT54G. My connection works fine, except at random intervals (sometimes 2 hours apart, sometimes 30 minutes) my wifi light goes off and I loose connection. By pressing Fn+F2 to turn them back on nearly always resurrects my connection but it is annoying.
I saw the option to upgrade firmware so I upgraded the firmware too: 184.108.40.206
Now I have no welcome screen and I can't use fast switching, when I try and enable them in control panel >user accounts, it says: A recently installed program has disabled these functions, to restore these features. IWPDGINA.DLL might help to tell you which program. . .which I think is the wireless. .is there an easy fix, or do I just have to roll back the software? If so, to which one?
I reinstalled the firmware, remembering I had selected an option called 'pre logon connect' when reinstalling I unticked this and my problems went away.
About rolling back, if I go to my Adapter Settings, and then firmware, there is a big button to roll back to previous installation of firmware. . .not sure if this is what you said couldn't be done or not. .
I was generalising, but it is very rare to find any hardware in which you can roll back firmware. The system for flashing firmware is commonly done from a command prompt - sometimes even in a DOS sub-environment - and thus is not necessarily designed to allow a rollback.
What you have in your case is a form of dual firmware ROM chip, somewhat like a dual BIOS, which stores the previous firmware version for you. A very few types of hardware are beginning to adopt this feature. I hope that it will become the norm, but I know that's wishful thinking!
Just go to add-remove programs and modify the Intel Proset Wireless. Uncheck the "Pre-Logon Connection" and apply. On reboot u will be presented with the normal Welcome screen instead of the Network Logon screen.