When I called I was told that the outage will also prevent 4G/3G devices from working on 3G also. This is certainly the case with my Samsung 4 G LTE hotspot.
My deepest apologies for the issues you have been having with 4G connectivity. Are you still having the issue? What type of device you have? If you can provide me this info, I can certainly provide some steps on how to get your device working now that the 4G outage has been resolved.