Belkin N300 wireless adapter

The laptop model is an IBM ThinkPad T30. The output says this:
IBM
236685U
Not Available

Nope, all the dependencies seem to be here.

Have you tried the "Additional Drivers Tool"?:

I just tried that, it didn’t work. I’m positive there’s a problem with the physical USB ports.

This is all I have:

Ok, everyone. I found that the problem was indeed the USB ports were bad. I’ve replaced the I/O card and the problem is fixed. I was so excited when the laptop started up after being dissected like that. You have to almost completely gut the laptop to get to the I/O card.

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