In addition to enabling monitoring of your customers' computers and servers (via installed agents), Atera also enables other types of monitoring, including monitoring ports 25, 80, 443, and more. To do so, you will need to add a new TCP device to Atera.

Add a TCP device

1. From the top bar, click New > Monitored device > TCP.

The TCP Device page appears.

2. Fill in the following fields:

• Device name: Enter a name to help you easily identify the device.
• Description: Enter a short description of the device (optional).
• Customer: Assign the device to a customer via the dropdown menu.
• Folder: Select the customer folder you want to add the device to (optional).
• Monitoring agent: Select the agent-installed device that will monitor this TCP device. This is the designated agent within the network that will monitor the device and sample the relevant ports. Once selected, the monitoring agent’s online/offline status will appear automatically.
• Hostname/IP address: Enter the device hostname or IP address so the monitoring agent can reach it over the network.
• TCP Ports: Enter a TCP port number (1–65535). Click + to add additional ports to monitor.

3. Click Save.

The new TCP device is added and the console appears. 

The first tile includes several subtabs, giving you a quick way to view key device details, store reference info, and keep everything technicians might need in one place.

• Overview: Get a quick snapshot of the TCP device — availability monitoring, description, hostname, and date added — plus the device relationship details (customer, folder, and monitoring agent).
• Custom Fields: Store device-specific context your team may need during troubleshooting (e.g., rack/line location, maintenance window, circuit ID, and direct links to runbooks or vendor portals). For more details, see Custom fields
• Passwords: Keep credentials tied to the device in one place so technicians can access what they need during maintenance (for example, the device web console, admin login, or related service portal). Add additional entries by clicking + New password.
• Attachments: View files attached to the device (for example, network diagrams, vendor manuals, configs, or screenshots). To add a file, click Upload file (max file size is 20 MB per file).

Other tiles include:

• Alert status: View a quick summary of current alerts by severity — Critical, Warning, and Information.
• Monitor history: Review recent monitoring results, including when the device was online or offline. Filter the timeline by Last 24 hours, Last week, or Last month. Note that if any alert is currently open for the device, the graph will display it as 'Off' for that period.
• Device ports: See the device’s TCP ports, whether each port is monitored, and its current status (for example, Up or Down). Add new ports to monitor, or edit existing ports as needed.
• Alerts: View port-related alerts (for example, when a monitored port goes down). These alerts also appear alongside your other Atera alerts. You can create tickets manually, or automate ticket creation from Alert settings.