Worked in tech support for a major internet provider. We would constantly have major ouages in various locations due to overtaxed systems going down. Corporate refused to allow us to admit that there were problems on our end and forced the techs to troubleshoot the customer calls, even though we all knew that we could do nothing for the customer. Saw multiple techs releived of their job for telling the truth to the customers. So many hours wasted on both the customer and techs part.
This has happened to me with Cable One/Sparklight where I was dropping packets and my traceroutes would fail on the same switches in their edge network every time and they wouldn't acknowledge there was a problem and advised me to reboot my router every time I called over the course of months. I eventually moved.