This is happening to our home as well.
Constant outages throughout the day- sometimes every half hour, sometimes every few minutes. A household of 6 WFH adults on the 1000Mbs plan are unable to work as a result.
I followed the above recommendations without resolve.
This is critically impacting our employment duties.
Is this with WiFi connections ? If so, for a test, does a computer hardwired directly to the router / gateway device with an ethernet cable have the same problem ?
What do the modem's signal stats look like ? Try getting them here http://192.168.100.1 or here http://10.0.0.1
Please post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.
What is the exact make and model number of the modem ?