Gateway keeps "dropping" devices, effects internet, TV and Voice!

I have found out that in my neighbor cul de'sac that I live, we are ALL having problem with our Gateways.

We ALL dropping connection to devices, and have to reset/restart them. Our connections are good-excellent (mine is 112% of plan speed).

One of my neighbors had Xfinity service people out here, and they replaced all the cables from the outside box, all the way thru her house to here device(s). She is still losing devices.

Now, when I say devices, I mean: TV Set-Top-Boxes, DVR, Cameras (indoor & outdoor), Table/iPad, iPhones, Voice service (land line phone), etc.

I purchased an xFi Pod set (3) to boost connections to my outdoor cameras. They do work, but I since have pulled them thinking they were the problem with broken connections.

I then found out from my neighbors their problems, like mine. I MAY put them back in/on.

I have the white Gateway Router (the newest one), and very strong connections when working. I believe my neighbors all do too.

When the service "goes down," it's only down for a split second (I think), but connected devices need to be reset/restarted: STB & DVR freezes, Cameras, Phones, Tablets go offline.

This also happens when we are not home, as I check on my puppies when away. We have porch cams, to notify us of deliveries, and I miss notifications due to device being offline.

Most devices will reconnect themselves, but most of the time, I have to unplug them to reset/restart, especially STB & DVR.

This has now gotten to the point of annoying! I'm almost ready to start "logging" these connection drops, and refuse to pay for the service when I am not getting it.

Is there a problem with the new generation of Gateway Routers? Is there a firmware update? Is there a newer version than mine?

My gateway Details:

   Model Name: CGM4331COM

   Vendor: Technicolor

   Revision: 2.0

   Firmware: CGM4331COM_4.11p7s1_PROD_sey