On the Trisquel 5.5 STS machine run: lspci | grep Wireless
Paste the output here. Your wireless card is probably not supported in Trisquel as it is dependent on non-free drivers/firmware or there is no support for GNU/Linux.
On the Trisquel 5.5 STS machine run: lspci | grep Wireless
Paste the output here. Your wireless card is probably not supported in Trisquel as it is dependent on non-free drivers/firmware or there is no support for GNU/Linux.