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I just installed Ubuntu 12.04 on my desktop and in the network setting it shows that the wireless card firmware is missing; The network is belkin F5D7000 Wireless Network Adapter.

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up vote 1 down vote accepted

It appears some versions of this adapter use a Broadcom chipset, in which case you can solve your problem by installing these packages from a terminal:

First run sudo apt-get update, and then run:

sudo apt-get install b43-fwcutter firmware-b43-installer

Then reboot, and see if it works.

If not, please share the content or output of the following commands/files to better help us troubleshoot your problem (instructions in this answer): command(s): dmesg and sudo lshw

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