What is NAS Request

NBN disconnection reason: NAS-Request means the connection was intentionally terminated by the Network Access Server (NAS) — not due to a physical line fault.

In plain English: the network asked your session to disconnect.

Common reasons this happens

1. Session reset / reauthentication

   • NBN or your RSP (ISP) forced a reconnect to refresh the PPP session.

2. Configuration change

   • Speed plan change, provisioning update, or backend changes by the ISP.

3. Idle timeout

   • The connection was inactive for a period and the NAS dropped it.

4. Duplicate login

   • Your credentials were used to start a new session (e.g. router reboot, second router, or failover kicking in).

5. Network maintenance

   • Scheduled or unscheduled maintenance on the NBN or ISP side.

6. IP address or routing refresh

   • Common during DHCP/PPPoE renegotiation.

What it is not

• ❌ Not a line fault

• ❌ Not a modem/router hardware failure

• ❌ Not usually an NBN outage

When to worry

• If it happens frequently (e.g. every few minutes or hours) → likely:

  • Router firmware issue

  • PPP keepalive / MTU issue

  • ISP session handling problem

What to check (quickly)

• Router logs: are they showing repeated PPP reconnects?

• Firmware up to date?

• Is only one router using the NBN connection?

• Does it coincide with a fixed interval (e.g. exactly every 24 hours)?