Tenda routers typically use the default IP address 192.168.0.1 for accessing the router's management interface. To access the router settings, open a web browser and type 192.168.0.1 into the address bar. You may be prompted for a username and password; the default credentials for Tenda routers are usually admin for both the username and password, but it's recommended to check the router's manual or documentation for specific details as models may vary.