This is a link to another thread …
https://community.naimaudio.com/t/ndx-fix-screen-or-replace-with-nd5xs2/39609/30
and the suggestion is to replace ping with a connection over http …
I had not known that I could actually point a browser at the NDX. Now that I have discoverred this I have changed my ping command from
ping -c4 192.168.1.5
to
wget 192.168.1.5
mv index.html index.old.html
Hopefully this will improve things.
Thanks for the hint and advice.