Webpages visited not displaying in Logs

Problem: I am trying to monitor what webpages are being accessed from attached devices through my router but the urls are not being displayed in Logs. Nor is each incident of webpage access.

I go to Advanced>Administration>Logs; all tickboxes at the bottom of the "Logs" page are selected. I have also enabled site blocking by going to the Advanced>Security>Block Sites tab and selecting Always (I found out this might be necessary in order for webpages to display in Logs, thanks to a post from bctkimball back in 2015-09-21 entitled "Router not showing web traffic")

In Logs I am only seeing administrative entries, such as [LAN access], [DoS attack], [admin login] with the relevant IP addresses. But it's not showing each time a webpage has been accessed and the address of the page.

Thanks in advance for letting me know what's required to fix this so I can see the urls of webpages being accessed.