I called a repairman, out, again, and the problem SEEMED to be fixed, but I got ONE DAY of “plan-normal speed”, before it reverted, again !
It is PEGGED, at 117Mbps down, when the plan’s speed is 200Mbps .
More important, is the upload speed, which is PEGGED at 5.9Mbps, when the plan’s speed is 10Mbps .
Since my Mac is constantly “syncing” to iCloud storage, upload speed is IMPORTANT !
Upgrading to the 400/20 plan, MAY not be an option, since NO SPEED IS GUARANTEED, by the ISP !