I upgraded to fibre-optic service a few weeks ago. With my old DSL modem I shut it down or restarted it on a regular basis, thus I was never stuck with a constant IP address.
The new modem does not do that as readily (or as easily)...but yesterday I "released" and "refreshed" my IP address...and...
The graph is showing new test results, again!
I do not know how the two things are connected...but changing my IP address *seems* to have resolved the issue.
Maybe this can help you to figure out what happened...because, if it happened to me, it might well happen to more of your users.
missinglincoln got a reaction from CA3LE in "My Logged Results" page is frozen.