How to troubleshoot "Instance failed network setup after 1 attempt(s): ConnectTimeout" is logged in nova-compute.log

Solution Verified - Updated -

Issue

  • How to find the cause of errors logged in nova-compute.log
ERROR nova.compute.manager [req-UUID - default default] 
Instance failed network setup after 1 attempt(s): ConnectTimeout: Request to http://NEUTRON-VIP:NEUTRON-PORT/v2.0/ports/PORT-UUID timed out

Environment

  • Red Hat OpenStack Platform 13.0 (RHOSP)

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