Sometimes I connect at a slow internet speed

Please start here if you wish;

https://forums.xfinity.com/conversations/your-home-network/connection-troubleshooting-tips/602da777c5375f08cdea3db9 

@denm43

Make this more enthusiastic: great question depending on how you're testing your Internet speed you may see a fluctuation and the readings a great tool to use is our Xfinity App you can run the troubleshooting link that will first diagnose the signals going into your home,  it then will then run a speed test on the speeds coming into your modem, if it detects a issue it will then run through some trouble shooting steps to fix the issue  if the issues cannot be fixed remotely it will walk you through setting up for a technician to come out to your home to fix the issue.

Can you give me a little more detail on how you run your speed test?  Are you running it via the app or  just going to speed test website to check the speeds?  Also are you checking the speeds when connected via Wi-Fi or are you connected directly into the modem via Ethernet cable?

@denm43 

Have you had a chance to see if any of those tips that I gave you apply ?