Are you in the Calgary area? I am having the same issues. For most of the morning now, I had no internet service. Only recently my phone started to show 4G, but it's not actually accessing the internet.
I'm experiencing issues in the Calgary area and based on this website (http://canadianoutages.com/status/rogers), it looks like Rogers is having some larger scale issues which is impacting quite a few people but perhaps not everyone (the lucky one's today!).
Hopefully it'll be back up soon - I haven't been able to get a hold of Rogers support and based on what i've been able to find, there's not ETA on when they'll have things sorted out.