waited a bit and retried and the caddy logs looked better...but still having issues with nodes hanging during join. Saw this in the docker mq logs

1651096784: New connection from 129.151.216.73:59798 on port 8883.
1651096784: OpenSSL Error[0]: error:14094412:SSL routines:ssl3_read_bytes:sslv3 alert bad certificate
1651096784: Client <unknown> disconnected: Protocol error.
1651096788: New connection from 129.151.216.73:59800 on port 8883.
1651096788: OpenSSL Error[0]: error:14094412:SSL routines:ssl3_read_bytes:sslv3 alert bad certificate
1651096788: Client <unknown> disconnected: Protocol error.
1651096792: New connection from 129.151.216.73:59802 on port 8883.
1651096792: OpenSSL Error[0]: error:14094412:SSL routines:ssl3_read_bytes:sslv3 alert bad certificate
1651096792: Client <unknown> disconnected: Protocol error.