I am using Digi XBee3 LTE CAT1 (AT&T) modem (P/N XB3-C-A1-UT-001) to connect to the AWS IoT broker. Currently the MQTT Keep Alive is set to 5 minutes. Every now and then, I see the modem status messages (0x8A using API frame mode) come out indicating a disassociation (03), then an association (02) within a few seconds apart. In this case, if my AWS connection has already been established prior to disassociate/associate, do I need to tear down the AWS connection, meaning MQTT disconnect -> socket close, then restart the AWS connecting steps?