We would need to know what wireless adapter is in the machine and not just its brand and commercial model number, but rather its chipset as Linux sees it. You can just open a terminal and type in "lspci" which is LSPCI in lowercase (and without quotes) and past the entire output here. That will list all your PCI devices, such as video, ethernet, wifi, etc.
Just for general knowledge, if you enter "lsmod" (LSMOD in lowercase) it will list all active drivers currently in use. No need to do so now probably, but good to know as you troubleshoot hardware issues.