# What Should I Do If the Agent Status Is Faulty?

The OS monitoring Agent sends a heartbeat message to Cloud Eye every minute. If Cloud Eye does not receive any heartbeat messages for 3 minutes, Agent Status is displayed as Faulty.

It may because:

- The account is in arrears.
- If the Agent process is faulty, restart it by following the instructions provided in Managing the Agent. If the restart fails, related files have been deleted by mistake. In this case, reinstall the Agent.

It may be that the Agent is incorrectly configured. Check whether the DNS server address is correct. If it is, check the Agent configurations by referring to Modifying the DNS Server Address and Adding Security Group Rules (Linux) and (Optional) Manually Configuring the Agent (Linux).

Locate the cause in log /usr/local/telescope/log/common.log.

Parent topic: Server Monitoring