Hi Furry,
Thanks for you reply. I am using FF. I tried this with another PC but the result was the same. Also tried it with IE but that did not help. And yes, I did empty the browser cache as you suggested as well.
I really do not want to do a factory reset because I hate to start to set up all over again.
I noticed that after putting the new password, clicked save settings, and chose reboot now ...it was saying "rebooting" but I saw this message in the browser address bar "http://192.168.0.1/reboot.cgi?reset=false". Does that mean my router fails to reset or reboot? Any suggestion? Thanks.