Hello Omobolanle,
Thank you for using the Cisco Small Business forums. My name is Kevin, I am an eContent developer and I am part of the Small Business Support Community. If I may ask, what are the configuration settings on your RV180W? Can you tell me 1 or 2 websites you are trying to block?
Here's some documentation that I have found in our knowledge base that may help with your concerns: URL Blocking on RV180 and RV180W Routers
I hope you reply back with any questions or concerns.
Sincerely,
Kevin Yen
Cisco eContent Developer