Problem
In rare scenarios, rebooting an IXrouter may temporarily interrupt a switch connected to the LAN interface. As a result, there is no network traffic on the switch for 1 or 2 seconds.
Cause
The switch detects a topology change and responds to this action.
Solution
Enable STP (Spanning Tree Protocol) on the port of the switch to which the IXrouter is connected. If this happens with an unmanaged switch, replace it with a managed switch.