K this is really strange. Firmware 1.00 seems to work ok. I upgraded to 1.02 and this is what is happening on my router:
Using IE 11 - logged into router, went to website filters. Select
Deny clients access to only these sites from the drop-down. I entered
yahoo.com and clicked Save.
In Edge and IE 11, I could go to yahoo.com but not sites like maps.yahoo.com. Chrome and firefox both were blocked.
In IE 11, while on yahoo.com, I pressed ctrl-shift-del and cleared the cache again. opened a new tab and could not go to yahoo.com. I refreshed the other tab and could not go to yahoo.com.
Did the same in edge, no change. I could go to yahoo.com, not maps.yahoo.com but could go to sports.yahoo.com....
I removed the filter in the router and all 4 browsers worked. I put the filter back in and same behavior. I cleared all browser cache and restarted the browser. Same thing.
Using dynamic ISP connection, DNS relay enabled and computer is getting DHCP.
Sooo looks like I will open a DTrack and report this issue.
I configured the router with Chrome and Firefox and now all browsers will go to yahoo.com with the filter enabled and cache cleared.