Something I also tried: running an "Unbound DNS" server on my internal network. Figured if I could control the DNS entries for all devices via manual control, I would be ahead of the curve. That didn't work as I found I could only set the DHCP DNS en...
Googled "rogers ignite nat loopback" and ended up here. Ours stopped working a few days ago as well. Similar use case. Fortunately we're dual-fed, so I switched my DNS entries to hit our DSL instead of our cable.