From both topics, I understand there is a problem with the router. The next step is to identify what kind of connection to the Internet you have. To do this, look for the contract provided by your ISP. Once you get the connection mode (Static IP, DHCP, PPPoE) , you can start the reset procedure. On the back of the router there should be a tiny hole. Use a sharp pin and while the router is working press it and hold it firmly for 20-40 seconds. Release and disconnect all the cables. Make a direct connect from PC to one of router's ports and then access the admin area or insert the CD. RE-Configure the router, and make sure you assign a password for wireless (make it WPA 2 Personal with Auto Encryption and channel 11). It should work now.
Note: If the phone can't connect, switch the encryption protocol to AES.