Unable to start second rabbitmq node on single Windows host - rabbitmq

Question

I am trying to run two rabbitmq nodes on a single windows host. My end goal is to run two rabbitmq services.
currently, I have the following commands for the second node in rabbitmq-env-conf.bat :
set RABBITMQ_CONFIG_FILE=%APPDATA%\RabbitMQ\rabbitmq.conf
set RABBITMQ_NODENAME=rabbit2#hostname
set RABBITMQ_DIST_PORT=5673
set RABBITMQ_SERVER_START_ARGS="-rabbitmq_management listener [{port,15673}]"
Running .\rabbitmq-server.bat start produces the following error :
. . .
Starting broker...Logger - error: {removed_failing_handler,rabbit_log}
BOOT FAILED
===========
Error during startup: {error,
{rabbitmq_management,
{bad_return,
{{rabbit_mgmt_app,start,[normal,[]]},
{'EXIT',
{{could_not_start_listener,
[{cowboy_opts,[{sendfile,false}]},{port,15672}],
{shutdown,
{failed_to_start_child,ranch_acceptors_sup,
{listen_error,
{acceptor,{0,0,0,0,0,0,0,0},15672},
eaddrinuse}}}},
. . .
From the log :
Application rabbitmq_management exited with reason: {{could_not_start_listener,[{cowboy_opts,[{sendfile,false}]},{port,15672}],{shutdown,{failed_to_start_child,ranch_acceptors_sup,{listen_error,{acceptor,{0,0,0,0,0,0,0,0},15672},eaddrinuse}}}},{gen_server,call,[rabbit_web_dispatch_registry,{add,rabbitmq_management_tcp,[{cowboy_opts,[{sendfile,false}]},{port,15672}],#Fun<rabbit_web_dispatch.0.73002970>,[{'_',[],[{[],[],rabbit_mgmt_wm_static,{priv_file,rabbitmq_management,"www/index.html"}},{[<<"api">>,<<"overview">>],[],rabbit_mgmt_wm_overview,...},...]}],...},...]}}
It looks like I am unable to setup the rabbitmq management port successfully despite suppling starting args.
15672 is the first rabbitmq's management port number and I am not sure why this number is being picked up.
Some troubleshooting pointers will be appreciated.