Hub 4 - Flashing yellow/blue light, no internet connection.

My internet has been down for a six days now.  Last tuesday I came in and the hub, it's a hub 4, was flashing a yellow light.  I checked the area's report for issues and it said there was one ongoing.  The following day it went to a red light and has been that way all weekend.

I've been getting updates on the issue via text and it reported as fixed today, six days later which is bad enough, but I came in and re-started my hub and it's just back to the yellow light again with no internet connection.  If left alone the yellow light will eventually turn into a flashing blue light instead.

When I log into the hub itself it says the hub has an internet registration failure.

Am I going to need an engineer here?