![]() Your smartphone, especially if it is a recent model, should give an accurate reading of your Internet speed. To determine if the issue is with your device, run speed tests on various devices, such as a laptop and an iPhone. To verify the type of coax cable, check the cable itself for the manufacturer’s information.Īdditionally, inspect the cable for damage, reconnect the F-connector, and clean it of dirt and rust.ģ) Perform Speed Tests on Different Devices Older homes may have older coax cables that affect Internet speed. Lower grade coax cables, such as RG59, may only have a maximum speed of 300-400 mbps. Please note that not all modems allow access to the Configuration Manager.Ģ) Verify Coax Cable Compatibility with Proposed Internet Speedįor speeds over 500 mbps, your coax cable should be of the type RG6. In this case, please contact Comcast and schedule an appointment with a technician. If any of the channels do not fall within these recommended ranges, there may be an issue with your line. Upstream power (Pwr): between 35 and 51 dBmV.Downstream power (Pwr): between -10 and 10 dBmV.Ensure that each channel falls within these recommended values:Įxample of Upstream specs in Configuration Manager / Image: You should now be able to view two tables: Downstream and Upstream. Enter the unique password located on your device’s bottom label in the Password field.To access the Configuration Manager, follow these steps: The Configuration Manager offers real-time specifications to assess if your line is in proper working order. Start from the top and work your way through each solution to achieve the best results.ġ) Verify Network Condition via Configuration Manager If your actual internet speed is significantly lower than the advertised speed by Xfinity, it could be due to network, hardware, software, or internet provider issues.ġ2 Solutions to Maximize Xfinity Internet Speedīased on reports from actual Xfinity users, we have prepared a list of actionable solutions to enhance your Xfinity speed. Xfinity Internet plans and speeds (at the time of writing)ĪLSO READ: Best modem-router combo for Xfinity 1000 Mbps plan You can also refer to the following table for the plans and internet speeds offered by Comcast: Plan Once you have determined your average internet speed from the multiple speed tests, compare it to the speed mentioned in your Xfinity contract. Why is Your Xfinity Internet Speed Lower than Advertised? If they approach 100%, the problem may be with your hardware. Monitor CPU and memory usage in the Task Manager during speed tests.Conduct speed tests with firewalls, antivirus, and VPNs disabled.Perform a speed test when connected directly to the modem.Conduct speed tests on various devices (laptop, smartphone).Conduct three different tests in incognito mode ( Ookla, Xfinity, Google).Hence, we suggest following these tips to obtain accurate speed test results: Running a single speed test through your browser may give incorrect results. To accurately determine if your speed is slow, perform a speed test on the Xfi app and ensure you are connected to the right WiFi network. If you have an adequate download speed but are facing problems with slow upload speeds, refer to another article that provides solutions to enhance Xfinity upload speed. This article mainly focuses on issues related to slow download speeds. We have a list of solutions for each of these categories to help you save money on a technician visit. ![]()
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