Here is a set of free online tools to check if you have a bad modem.
Cable modem latency test.
Although there are docsis 3 0 cable modems that technically support speeds of 1gbps or higher chances are that your cable internet provider will cap out at 600mbps over docsis 3 0.
Line test tool.
A reasonable line test result would show 0 packet loss latency below 100 milliseconds and jitter below 20 milliseconds.
Puma 6 test tool.
Buy a cheap new modem amazon price.
A dial up connection with a 56k modem for instance will have a higher ping compared to a good broadband connection.
This allows our test to see if there is any packet loss what the average network latency of your line is and provides a jitter measure.
These test results are often lower than your plan speed due to various factors outside your internet provider s control including wifi conditions and device capabilities.
These bad modem test can get you moving in the right direction.
Continous latency test.
Global ping test.
This accurate line quality test can alert you to any potential problems on your adsl line.
Xfinity also offers fast internet speeds and it performs well in every tested region in the country.
Google fiber rcn and verizon have the fastest tested internet speeds in the us according to our fastest internet providers 2020 report which is based on more than 2 4 million results from our internet speed test.
If you want real gigabit fibre optic class speeds you ll need to invest in a docsis 3 1 cable modem jesse hollington tech writer.
Note that it does not measure the speed cox is delivering to your modem since many factors affect the speed in your home as it s processed by your modem device and everything in between.
The cox internet speed test is backed by ookla and measures the ping latency download speed and upload speed between your device and a test server.
Satellite cable and fiber connections offer high speeds but only cable and fiber offer low latency.
Now keep in mind it is not always the modem s fault.
Test your internet connection bandwidth to locations around the world with this interactive broadband speed test from ookla.
