Internet connection instability I

The University’s Internet connection was unstable from 7 PM to 9:30 PM. We are unsure of the reason. Checked for unusual traffic at the core router, and found none. The traffic analysis graph shows an unusually flat usage level at about 5 Mbps during this the period 7PM to 9PM, then usage dropped to almost 0, and is now recovering.

The internet service provider has been called.