Can't access Netcomm NB9W's settings page

After I changed some settings in NB9W, I couldn't access the settings page in web browser anymore. However, I still could ping it successfully.

Somebody suggested to run 'netsh winsock reset' in the command prompt, then reset the computer. I did it and I still couldn't access the router.

The next thing that I did was to reset the router. Well..that's all..I can access the router now.