Use the settings shown below, and Avalanche will stop sending keep alives and allow NAT to close the connection.
On the Client>Profiles tab:
- Use HTTP 1.0 and disable keep alives
On the Client>Network tab:
- Set the inactivity timer to greater than 60000 ms
- Set the retries to 0
- Set the override internal timeout calculation with a value of more than 60000 ms