Check the color of the LED light on the front of the camera. If it's green, then the reporting path to the Internet is currently experiencing a delay longer than designed. Your camera will continue to monitor and record requested sound and motion events and it will transmit them when the network is up and running again. However, the live-stream feature may not be available.
In most cases, this issue will resolve itself in less than 30 minutes. If the LED is red, it may need to be reconnected to your router. Unplug the camera's power outlet, wait for around 30 seconds and then power the camera back on. Do the same with your Wi-Fi router. If you're still experiencing problems, please contact Honeywell Support at 1-800-633-3991.