Hi David, It's reassuring to know that you're still around and thanks for replying to my original post.
> > And also any output from: > > # dmesg | grep iwl > username@hostname:~$ sudo dmesg|grep iwl [sudo] password for username: [ 9.169801] iwlwifi 0000:07:00.0: enabling device (0000 -> 0002) [ 9.170310] iwlwifi 0000:07:00.0: firmware: failed to load iwlwifi-3160-17.ucode (-2) [ 9.170402] iwlwifi 0000:07:00.0: Direct firmware load for iwlwifi-3160-17.ucode failed with error -2 [ 9.170405] iwlwifi 0000:07:00.0: iwlwifi-3160-17 is required [ 9.170434] iwlwifi 0000:07:00.0: check git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git username@hostname:~$ It's my terrible mistake. After installing the package firmware-iwlwifi, the command "ip link show" displayed the name of the wireless interface. (I thought I had installed firmware-iwlwifi on this machine but I was wrong. In fact I installed it on my sister's newer computer but not on this one.)
