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# Common Causes for Push Failure

A push to a subscriber may fail for any number of reasons. These may include:

- Validation Failure: A push with invalid content will fail. Verify that your configuration includes valid setting values for the configuration type.

- Lack of Connectivity: Network or system issues can cause disrupt connectivity to a subscriber. Verify connectivity with the subscriber.

- Agent Not Running on Host : Verify that the ArcMC Agent process is active on the subscribing node. This does not apply to Connectors or Collectors, which do not require the Agent.

- Privileges on Subscribing Host: In order to push a subscription, the ArcSight Management Center user (specified by the user credentials) must have privileges to view, edit, or delete configuration settings on the subscriber nodes.

- Expired License: An expired host license will cause a push to the host to fail.