Windows - PLAIN login refused: user 'xxx' - invalid credentials

[Keith MacDonald]

I had this up and working for a month with no issues. Then I restarted my service that connects to RabbitMQ (using the .Net RabbitMQClient 3.6.2) and I started getting this error.

Error on AMQP connection <0.12732.86> ([::1]:60708 -> [::1]:5672, state: starting):

PLAIN login refused: user 'xxx' - invalid credentials

I verified that the password is correct and verified that it has full permissions.

Virtual Host = /

Configure regexp = .*

Write regexp = .*

Read regexp = .*

tags = administrator

The service is on the same box as rabbitMQ. It cannot connect using this account, but I can connect using guest/guest.

Other applications, running on different machines CAN and do connect to the rabbitMQ instance on this machine using this account and do not get login refused.

I am totally baffled.

Any help is appreciated.

[Michael Klishin]

"invalid credentials" is unambiguous. The problem is on the client end,

e.g. your client may be connecting to a vhost other than "/".

If an external authn backend was used, it could mean it failed to connect to the external

service but that should affect all clients and all cluster nodes equally.

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MK

Staff Software Engineer, Pivotal/RabbitMQ

[Keith MacDonald]

I agree the message is unambiguous, but I've checked username, password, host, and virtual host connection settings, and they are all correct. The problem only happens on the local machine.

I am connecting using

host=localhost (i have also tried the machine name)

port=5671

virtual host = /

username = "my username"

password = "my password"

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MK

Staff Software Engineer, Pivotal/RabbitMQ

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[Michael Klishin]

Collect data, don't guess. Please do post server logs, rabbitmqctl environment output and your code. You connect to the TLS port: was the client configured to use TLS or do you want port 5672 (which is the default)?

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