Dear Ivan,

Thank you for raising this question on the RWS Community.

According to the https://www.rabbitmq.com/clustering.html, and depending of the Erlang version used, the .erlang.cookie file should be available here:

- with Erlang versions starting with 20.2, the cookie file locations are:

• %HOMEDRIVE%%HOMEPATH%\.erlang.cookie (usually C:\Users\%USERNAME%\.erlang.cookie for user %USERNAME%) if both the HOMEDRIVE and HOMEPATH environment variables are set
• %USERPROFILE%\.erlang.cookie (usually C:\Users\%USERNAME%\.erlang.cookie) if HOMEDRIVE and HOMEPATH are not both set
• For the RabbitMQ Windows service - %USERPROFILE%\.erlang.cookie (usually C:\WINDOWS\system32\config\systemprofile)

- with Erlang versions prior to 20.2, the cookie file locations are:

• %HOMEDRIVE%%HOMEPATH%\.erlang.cookie (usually C:\Users\%USERNAME%\.erlang.cookie for user %USERNAME%) if both the HOMEDRIVE and HOMEPATH environment variables are set
• %USERPROFILE%\.erlang.cookie (usually C:\Users\%USERNAME%\.erlang.cookie) if HOMEDRIVE and HOMEPATH are not both set
• For the RabbitMQ Windows service - %WINDIR%\.erlang.cookie (usually C:\Windows\.erlang.cookie

Hope this helps.

Best regards