There are many stituations occurs when one needs to change their router default or assigned IP address. if in case some invalid address is configured accidentally. as some times static address are configured in wrong numbers range. when your router and the wifi network has same ip address then you need to assign new address to your router. There are cases when another device on the network has same ip address as of router. If any of the above mentioned situation occured with you then you have to change the LAN IP address of your router.Following are the steps to that you have to perform to change router LAN IP address:
Here is a whole information for setting up the Tenda router. If still you need help then visit Tenda official Website.