Hi,
I have an application that each 30 minutes connects to AWS, sends some data and then disconnects and goes to sleep. I have based my aplication on the asset_tracker application example.
The first time the devices connects to the AWS cloud everything works correctly. The device connects to AWS, sends the data and disconnects. But the second time it tries to connect I get the following error:
```
[00:00:49.673,004] <inf> app_event_manager: DATA_EVT_DATA_READY
[00:00:49.679,687] <inf> cloud_module: Connecting to AWS IoT Core
[00:00:49.686,309] <dbg> aws_iot: aws_iot_connect: No hostname provided, using Kconfig value: ---------ats.iot.us-east-1.amazonaws.com
[00:00:53.357,116] <dbg> aws_iot: on_connack: MQTT client connected!
[00:00:53.366,302] <err> os: ***** BUS FAULT *****
[00:00:53.371,765] <err> os: Precise data bus error
[00:00:53.377,502] <err> os: BFAR Address: 0x0
[00:00:53.382,873] <err> os: r0/a1: 0x73776124 r1/a2: 0x00067f62 r2/a3: 0x00000000
[00:00:53.391,601] <err> os: r3/a4: 0x73776124 r12/ip: 0x00000000 r14/lr: 0x0001cbeb
[00:00:53.400,299] <err> os: xpsr: 0x61000000
[00:00:53.405,578] <err> os: s[ 0]: 0x200156f0 s[ 1]: 0x20015664 s[ 2]: 0x00000001 s[ 3]: 0x00000 000
[00:00:53.416,046] <err> os: s[ 4]: 0x00000000 s[ 5]: 0x0003d855 s[ 6]: 0x00000000 s[ 7]: 0x0003d 925
[00:00:53.426,544] <err> os: s[ 8]: 0x00000010 s[ 9]: 0x00000000 s[10]: 0x20015664 s[11]: 0x0003c 253
[00:00:53.437,011] <err> os: s[12]: 0x00050cd5 s[13]: 0x00040109 s[14]: 0x00000000 s[15]: 0x00000 000
[00:00:53.447,479] <err> os: fpscr: 0x00000000
[00:00:53.452,728] <err> os: Faulting instruction address (r15/pc): 0x00009038
[00:00:53.460,662] <err> os: >>> ZEPHYR FATAL ERROR 25: Unknown error on CPU 0
[00:00:53.468,627] <err> os: Current thread: 0x20012c98 (mqtt_helper_thread)
```
This is my prj.conf
```
```
I'm using NCS 2.6.1