When do routers get replaced with more modern ones

If there is a signal / line / connection quality impairment somewhere, a new modem won't fix it. What do the modem's signal status values look like ? Try getting them here:  http://10.0.0.1 

Please copy all of the text in its entirety of the *Downstream Power Levels*, the *SNR's* (Signal to Noise Ratios), and the *Upstream Power Level* numbers and paste them into your next post.

Is this with a WiFi connection ?

Hello @user_j7x9ls thank you for taking the time to reach out on our community forum. You certainly have the option of upgrading your equipment by going to any Xfinity store and swapping it out or you can request that it be mailed to you if you would prefer that. Are you having trouble with slower internet speeds? Or is the internet dropping?