# Network Manager

This page monitors the status of Ethernet connections throughout the system, listing any Failed Network Messages or currently Offline Gateways.

## Failed Network Messages

To manually resend a failed message, click the Resend button.

You can also manually Clear a selected alert, or Clear All alerts.

### Automatic Failed Message Handling

System Manager handles message failures according to the following properties in System Manager Configuration > Site Settings > System Settings > Comms Engine.

Property | Description
--- | ---
Failed network message enabled | If True, SM will apply the settings below
Failed network message auto resend expiry | SM attempts to resend failed messages until this period ends
Failed network message auto removal time | SM clears each failed message alert when it reaches this age

## Offline Gateways

When an offline gateway reconnects to the system, it is automatically removed from the list.

You can attempt to manually reconnect to a gateway by clicking the Reconnect button.