A wide country
Plan around regional time rather than one “Canadian” hour
Canada stretches across several time zones. Evening in Halifax is still afternoon in Vancouver, and international daylight-saving changes may not line up. Availability therefore changes by region and moment; no static photo or country page proves that someone is online.
Use a stable connection, check the camera frame and close other media apps. Northern or rural connections may have good download throughput but variable latency, so test the actual network before assuming the browser or camera is at fault.