First, check if the power indicator light on the router is normal. If there is an internal problem with the router, even if the router is connected to the power, the indicator light will not light up. If all indicator lights are on normally, but are prone to disconnection or extremely unstable when connected to the network, it is recommended to judge from the Ping network or Ping router address. First, check the ping router address to check if the communication between the computer and the router is normal. Click the Win+R shortcut key to open the Run dialog box, enter the URL: ping192.168.1.1, and click OK. If the communication between the computer and the router is normal, such as when there is an over value or the host cannot be found, it indicates that the router is broken. If you find the above steps more troublesome, you can also try a different router and backup the configuration of the original router before setting it up. Try logging in to the account and password again. If everything is normal, it proves that the previous router is broken. If the problem persists, it is likely that it is due to other device issues, such as a cat or broadband line malfunction. Remember to back up the original router settings before setting up the router, as this can facilitate the router to restore itself and prevent the router from being unable to function properly. When it is confirmed that the router is malfunctioning, some routers are actually slightly damaged, such as due to internal heating. In this case, you can turn off the power and try it out. In addition, you can also restore the router to its factory settings and try it out, and you can recover on your own. Conclusion of the article: How to know if a router is broken is the relevant knowledge introduced here. I believe everyone has learned the method to determine whether a router is broken! If you encounter the same situation, you might as well follow the above approach to investigate and give it a try