Internet Dropping - Zoom calls and Apple TV affected
I am writing this in case it is helpful to someone. After a year of reliable service, I had a solid month of internet issues with Bell. I could browse the web and various devices could connect, but I could only unreliably connect to the network with my AppleTV (10 feet away from the modem) and Zoom calls were constantly freezing or dropping.
After literally dozens of calls, hours and hours and hours on the phone, escalations to "senior" tech support people, untold frustration, a modem replacement, 3 technicians sent to my house (one of who more or less said "well other devices are connected, so it must be your AppleTV that isn't working properly" before walking out the door again), the problem persisted. I had to tether to my phone or run an ethernet cable to stream anything or have work meetings.
Finally, in desperation I searched the internet and found a post somewhere about a modem setting called Whole Home Wifi. I logged into my modem, went to "Manage my Wifi" and switched it off and instantly, my problem was resolved. No one at Bell ever asked about or checked this setting. My current understanding is that this setting is useful if you have pods (extenders) but if you do not, can cause instability in your signal causing all manner of issues. If called Bell to ask why their tech support staff do not check this setting as part of their checklist only to be met with indifference--and apparent ignorance re: what the setting even is.
If you are having signal issues, calls dropping, devices connecting then disconnecting and you don't have pods, I encourage you to check this setting to see if it might be the solution. It was for me.