Wi-Fi problems are not always easy to see and many people don’t even realize that their connection has been compromised. For example, if your internet is slow or keeps turning off, someone else might be using it. Checking your Wi-Fi is a simple habit and it helps you see who is using your internet and keeps your home safe.
Review Connected Devices

Most Wi-Fi boxes have a list that shows every phone and computer using your internet. You can see this list by logging into your account where you will see names of devices like “John’s Phone” or “Living Room TV.”
Watch for Sudden Internet Slowdowns

If your internet is slow it might be because too many devices are using it at the same time. Additionally, if it stays slow for a long time, it might mean someone else is using your internet without you knowing.
Check Router Activity Logs

Another step you can try is checking router activity logs which may provide you a list of devices connected and what they do. Checking the logs helps you see things that look wrong. For example, if the log shows someone using a lot of internet at 3:00 AM while you are sleeping, it might be a stranger.
Look for Unknown Network Names

You can use a simple app on your phone to see all the Wi-Fi signals near you. Sometimes, a neighbor might use a name that looks almost like yours. This can be confusing for you and your devices.
Confirm Your Wi-Fi Password Strength

You would agree with me that short passwords are easy to remember, but they are also very easy for other people to guess. Using a long password with different kinds of letters, numbers, and symbols makes your Wi-Fi much safer.
Update Router Firmware

Your Wi-Fi box also known as a router needs updates just like your phone. These updates fix bugs and keep your internet safe from hackers or strangers. Checking for updates makes your Wi-Fi faster and keeps it working well.
Disable WPS if Not Needed

There is a button on many Wi-Fi boxes called WPS. Turning this button off makes your Wi-Fi safer. It closes a shortcut that strangers might use to get onto your internet without your permission.
Enable New Device Alerts

This could be very helpful in identifying strange network connections by getting alerts or notifications from routers. It lets you know what is happening right away without you having to check the settings every day.
Change Your Wi-Fi Password Periodically

Finally, you can change your password if nothing works in a good manner. After you change it, you have to type the new password into your own phones and computers to get them back online.