On the Prisma SD-WAN, if your ION device loses
connectivity, you will observe the following behaviors:- The ION device status appears as Offline.
- System incident display the message: "device disconnected from
controller"
Connectivity loss typically results from one of the following conditions:
- Internet Connectivity: The internet connection at the site is down
- Hardware Failure: The device is experiencing hardware or chip
malfunctions
- DNS Resolution: The device cannot resolve necessary hostnames due to DNS
failures
- Routing Configuration: Incorrect routing configurations are preventing
traffic flow
- Downstream Infrastructure: A lower-layer device, such as a downstream
switch, is down
- Traffic Blocking: An upstream firewall or proxy is blocking the
connection