After I installed the 3A firmware update on my MiFi 7730L last week, the device stopped broadcasting a WiFi signal. I have checked all the settings and done a hard reset multiple times, but none of my other devices are able to see the wifi network. I have also tried connecting to the wifi manually by adding the network to my PC and typing in the name of the WiFI network that the MiFi says it is broadcasting, but it says that the network does not exist.
I can plug the MiFi device directly into my laptop and tether via USB, but that's not ideal since I have other devices which need to connect to the MiFI as well.