Unable to register the client with Red Hat Capsule server and failing with error "Service unavailable or restarting, try later"

Solution Verified - Updated -


  • Unable to register the client with capsule server.
  • subscription-manager register command is failing with below error:
[root@client.example.com]# subscription-manager register 
Registering to: capsule.example.com:8443/rhsm
Username: admin
Service unavailable or restarting, try later


  • Red Hat Satellite 6.x
  • Red Hat Satellite Capsule 6.x

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In