Fails to bridge to Azure Event Grid Mqtt Broker (400 test failed: closed) about emqx HOT 7 CLOSED

Hi @TomasFinnoy, I'm trying to reproduce the issue.
Which Client Certificate Authentication Validation Scheme did you use?

from emqx.

from emqx.

@TomasFinnoy which CA have you added in bridge configuration? Try to set DigiCert Global Root G3 instead. This one is the CA that MS uses to sign server certificates.

from emqx.

We are trying to perform the suggested fix. Sorry for the delay. Easter holidays last week.

from emqx.

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

from emqx.

Hi,

have the same problem like TomasFinnoy described. I can connect to Azure event grid with MQTTX without selecting CA or with selecting DigiCert Global Root G3 CA like you mentioned.

When I try with EMQX:
-selecting DigiCertGlobalRootG3 as CA cert
-without selecting CA (empty)

Log:
2024-05-09T17:55:27.638947+02:00 [error] msg: start_ecpool_error, reason: closed, pool_name: <<"connector:mqtt:Azure">>
2024-05-09T17:55:27.639035+02:00 [warning] msg: start_resource_failed, id: <<"connector:mqtt:Azure">>, reason: closed
2024-05-09T17:55:42.753678+02:00 [warning] msg: ingress_client_connect_failed, name: <<"connector:mqtt:Azure">>, reason: closed
2024-05-09T17:55:42.754032+02:00 [error] crasher: initial call: ecpool_worker:init/1, pid: <0.86724.0>, registered_name: [], exit: {closed,[{gen_server,init_it,6,[{file,"gen_server.erl"},{line,961}]},{proc_lib,init_p_do_apply,3,[{file,"proc_lib.erl"},{line,241}]}]}, ancestors: [<0.86723.0>,<0.86721.0>,ecpool_sup,<0.2839.0>], message_queue_len: 1, messages: [{'EXIT',<0.86725.0>,{shutdown,closed}}], links: [<0.86723.0>], dictionary: [], trap_exit: true, status: running, heap_size: 1598, stack_size: 28, reductions: 2623; neighbours:
2024-05-09T17:55:42.754364+02:00 [error] Supervisor: {<0.86723.0>,ecpool_worker_sup}. Context: start_error. Reason: closed. Offender: id={worker,1},pid=undefined.
2024-05-09T17:55:42.754482+02:00 [error] Supervisor: {<0.86721.0>,ecpool_pool_sup}. Context: start_error. Reason: {shutdown,{failed_to_start_child,{worker,1},closed}}. Offender: id=worker_sup,pid=undefined.
2024-05-09T17:55:42.755056+02:00 [error] msg: start_ecpool_error, reason: closed, pool_name: <<"connector:mqtt:Azure">>
2024-05-09T17:55:42.755168+02:00 [warning] msg: start_resource_failed, id: <<"connector:mqtt:Azure">>, reason: closed

from emqx.

Hi @PDA-IT
Have you tried to set the SNI?

from emqx.