This Guide will show you how to change the DNS address in your Speedefy wireless router.
Step 1: Launch a web browser from a computer or mobile device that is connected to the network.
Step 2: Enter http://www.speedefywifi.com or 192.168.3.1
Step 3: Enter the login password.
Step 4: Go to Internet Settings > DNS Settings, switch it to Manual. Type in the Primary DNS Server and the Secondary DNS Server(can be ignored) you prefer.
Step 5: Click Connect. Your device will lost Internet connection for a while and then reconnect to the WiFi.