The wait times for Ignite Technical Support Live Chat or the call center is always crazy. May be 'crazy' is too good for it.
Anyway, I need help resolve following issue: I do not receive Alerts on cell phones when I am on my home WiFi. It works fine when I am on any other WiFi (I tried on non-rogers wifi, Fido mobile data, Fido hotspot, Bell WiFi). So it is not my phones, it is not my apps. Sample list of apps : Microsoft Teams (e.g. I do not receive notification when anyone sends me message), Yahoo Finance, TD Mobile App, RBC Mobile App etc. Again, I receive real time alerts on these apps when I am not my rogers wifi.
I'm not sure what is causing the problem in your case. If you have Parental Controls and/or Protected Browsing enabled, the Ignite Gateway blocks devices from establishing forbidden connections by intercepting DNS queries and providing bogus responses. It's possible that your phone could still have these bogus resource records cached.
A number of people have experienced similar issues after switching to Ignite Internet, and disabling Parental Controls and Protected Browsing (eventually) resolved the problem.
If you have apps that use a 3rd-party DNS service, I believe that the XB6 will block that traffic as well (to prevent users from circumventing parental controls) which could also cause strange connectivity problems.