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If you have a Broadcom wireless NIC you most likely need the firmware. Downloading from the manufacturers website is normally not the way to go. You should at first look if the necessary software is in the distros repository. We need to know which specific chipset your machine is using, so please post the output of lspci.
My current driver for my wireless NIC is Broadcom 802.11 Linux STA wireless driver source 188.8.131.52+bdcom
The problem is that when I perform lspci it does not give me a driver version. I have to go to synaptic manager and see what driver I installed. This is obviously a great concern because the PCI Bus does not even see the Broadcom NIC.
This is very irritating! My laptop connected to the Internet yesterday, but nothing now. So basically I need to reinstall the drivers, right? I can do that, but how do I prevent from losing the drivers again?
There is no output to the lspci, because the PCI Bus does not see the card (Broadcom). I also loaded the drivers from Synaptic Package Manager (bcmwl-kernal-source) and activated them. In addition, I did some research and found that there was a known conflict between the Broadcom drivers and the Nvidia GeForce Go 6150, so I upgraded those.
It worked for about 1 day, then it stopped. Apparently HP is not supporting their WiFi NIC vendor, because everyone is having trouble with this issue (that have HP's).
The question is why did I lose the OS 11.04 image and the drivers? Why did the OS revert back to 10.10? There is definitely some instability but whether it is the hardware or my image I do not know.
Thank you for your interest. If anyone can help, I would appreciate it.