There are a few adjustments you can make in your house to make sure you’re getting the fastest service possible.
Whenever possible, use an actual ethernet cable from your router or cable modem to your computer. Wireless is convenient, but it’s just not as reliable and doesn’t perform as well.
You can also check the cables from your devices to make sure they’re all plugged in securely. Sometimes a flaky connection is due to a curious child messing with the wires, or cats.
If it’s been a while, rebooting your cable modem and router can help your performance. You can also upgrade the firmware of your router. The details are beyond the scope of this article, but you can find more information at the router manufacturer’s web site.