Make sure you are getting your subscribed speed to Comcast with our XFINITY Speed Test Tool. Compare the test results to your actual billing speed. Several different obstacles may hinder you from receiving the speeds you pay for.
Issues with Comcast Internet: Check via the XFINITY Status Center online. From here you can restart your modem, run diagnostics and check for XFINITY outages. This is usually not productive but it is a good start.
Do Not Use Twist-On Connectors
Home Cable Wiring Issues
Issues with connections within your home: Connect your modem directly to the line coming inside and then directly to your PC. Re-run the Comcast Speed Test and compare download speeds. If this produces better results, there is a loose connection inside your home somewhere. Trace the lines back and make sure everything is tight. Avoid the use of screw on coax connectors and use factory made Quad Shield Coax Cables whenever possible. Also, avoid the use of cable splitters as this weakens the signal every time it is split. If one must be used, use a Signal Booster / Splitter as these have zero signal loss.
XFINITY WiFi Hostpot Connected Devices
Turn Off XFINITY WiFi Hotspot
Too many people on the network around you: Network congestion with cable Internet is not a major issue as with DSL. However, this can impede speeds slightly. Additionally, if you use a Comcast provided WiFi modem, Comcast is probably using it to feed it's WiFi Hotspot network. Check to see if your device is connected to the network and disable it.
Upgrade XFINITY Modem
XFINITY Modem Troubleshooting
Cable modem may be on the fritz: Or not able to produce the correct speeds. First, restart the modem and wait to come back online. Most modems have a power button, if not, simply unplug it and reconnect it. If this doesn't correct the issue, check our XFINITY Modem List to be sure your modem was made to handle the correct speeds.