Flickering Internet

[robbies]

mine too for the last 3 months , the only time i have consitant internet without pauses and dropped signals is when i switch back to RCN cable , this has been going on now for more than 15 years now , you learn how to live with comcast constantly dropped signal until you go back to RCN . they ,ll tell you it is the modem , the router , the splitter etc etc so you buy all new modems and routers etc the same problem,.

switch would be my advice 

[EG]

Please start here if you wish;

https://forums.xfinity.com/t5/Your-Home-Network/Internet-Troubleshooting-Tips/m-p/3310447#M316652