I am a Network and CCNA certified individual with plenty of knowledge of networking. My plan is 250Mbps, I switched to using my own equipment which is very high quality. When using my personal modem/router I was getting an average of 17Mbps. I checked and double-checked my settings but was unable to find a solution. I decided to rent a Comcast modem to see if my speed is being throttled I was able to get at least 150Mbps right away. I am now certain Comcast is trying to force people to rent their equipment to make as much money as they can.