So I tested all my 4 Librenms servers and the Demo server using IE 32bit from my W10 laptop. Silly me.
Tried it with Edge, Firefox and all works fine.
You think after I built and integrated Grafana “LibreNMS Interfaces”, Graylog, SmokePing and Weathermap on a single LAB server I’d have the sense to try another browser.
Thanks for your time.
Eamonn