O Canada! > Canadian > TekSavvy > [Cable] [QC] Speedtest to TSI server in Toronto doesn't work

"This error message means that the test was unable to load the latency test file on the server."
»wiki.ookla.com/troubleshooting#latency_error

So TSI needs to fix something on their speedtest server.
You can use »speedtest.teksavvy.com/ for now though.
pingtest.net for pings.