Yes, and regarding the appointment, it has been a busy week for ISPs and understaffed techOps, I am tech support not dispatch and a poor tech called my at 8:00pm still working on a cx house, (with no dispatch assistance bc they left at 6:00pm)

Try to reschedule the appointment, having that exposed may be being affected by humidity, change of temperature during the day, etc

See it is usually difficult to troubleshoot customer owned devices, wait for their router and see how it goes, if you are getting around the same speeds, it’s time for a service call.