Traffic Shaping Policy for Guest VLAN

I followed all the directions for creating a traffic shaping policy and applying it to a rule based on these instructions:

https://support.sophos.com/support/s/article/KB-000035652?language=en_US#related-information

Unfortunately, what happens is all traffic seems to stop working and the wireless indicates "No Internet".

My rule allows our Las Vegas VLAN 120 to access the WAN, but uses a guarantee of 2048KB an limited to 8192KB...more than enough to allow traffic to flow, and just to verify it works, yet no web pages load.

I have tried a variety of combinations such as usage time to individual, using "Any" for the services, I have put the rule at the top, middle, bottom. I have tried applying to a single IP host.  I have tried ANY for source and destination zones.

I've run out of ideas, but I notice that sometimes I have to reboot the firewall for some things to start working...which has been a nightmare considering I do this at least once per week when things are not working right or screens freeze up.

I will try a firewall reboot to see if that fixes the problem, but I have my doubts.

Any help or tips on what could be preventing the Traffic Shaping rules from applying would be great.

Thanks.