@Jeremy31, I tried your alternate cat command and I think it worked; I got:
james@NUC14Ess:~/Downloads$ cat wireless-info.txt | pastebinit
https://dpaste.com/4NR5WCGA7
james@NUC14Ess:~/Downloads$
and I tried to follow the info about “spoiler” and I have absolutely no idea what that’s about.
Anyway, now that my wireless-info.txt is uploaded (right?) is there anything I should do but wait for someone (you?) to read it and reply to this thread?
Is there a better diagnostic tool that may look more closely at my Ethernet stuff than wireless-info does? If so, please point me down that path.
Thanks again.
Jim