Here, you can get the default IP address and the password for the user interface of the Linksys EA7500 WiFi router in this Linksys EA7500 manual. The default IP address is ‘192.168.1.1’, and the password is ‘admin.’ Use this default setting to login to the router. Now, to access the user interface, which is necessary when you want to change the router configuration, you have to do the following actions. First, switch on the router. Then, connect the device via WiFi or a network cable with the router. Then, open a web browser. Now, insert the IP address in the address bar and confirm with the ‘Enter’ button. Then, you have to enter the password in the open interface and confirm it one more time.