Hello,
5 months ago, I had build a demo reusing the code in the PyPortal IoT Plant Monitor with AWS IoT and CircuitPython which I had modified.
Everything was working fine.
I was trying to recreate this demo and now the Adafruit Pyportal is not able to connect to AWS IoT. Even when trying to recreate the PyPortal IoT Plant Monitor with AWS IoT and CircuitPython demo instead of my modified demo it fails with the same error:

File "adafruit_aws_iot.py", line 145, in connect
AWS_IOT_ERROR: ('Error connecting to AWS IoT: ', MMQTTException('Repeated connect failures',))

Could it be because of this issue AWS IoT SDK Python V2 Support

Thank you in advance