Content Filter in Security Edge Not Working

I have been set up on Comcast Business for approximately a year. I am working from home, and we happen to have seven kiddos, so we are using security edge to set content filters up for the house. Unfortunately, those Contant filters have only worked for about 20% of the time. We set them up when we initially got the service, and then, after a few months, I noticed that there was nothing showing up in the report that showed what was being blocked. The nature of the blocking is a little bit of overkill, so if it is working, there is always something in that report. I worked with Support at one point, and they needed to completely reboot the router and remove all of the configuration that had been done, including the customized filters, and URLs that have been built-in, and I had to start from scratch. That configuration held for a short time, and now the same issue is occurring again, with no filtering active on our Internet service. has anyone else run into this? Is this a hardware issue? Should the router just be replaced with one that will actually hold the configuration and allow it to function going forward?