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SonicOS 5.8.1 Administrator Guide
Troubleshooting NAT Load Balancing
If the Web servers do not seem to be accessible, go to the Firewall > Access Rules page and
mouseover the Statistics icon.
If the rule is configured incorrectly you will not see any Rx or TX Bytes; if it is working, you will
see these increment with each successful external access of the load balanced resources.
You can also check the Firewall > NAT Policies page and mouseover the Statistics icon. If
the policy is configured incorrectly you will not see any Rx or TX Bytes; if it is working, you will
see these increment with each successful external access of the load balanced resources.
Finally, check the logs and the status page to see if there are any alerts (noted in yellow) about
the Network Monitor noting hosts that are offline; it may be that all of your load balancing
resources are not reachable by the SonicWALL appliance and that the probing mechanism has
marked them offline and out of service. Check the load balancing resources to ensure that they
are functional and check the networking connections between them and the SonicWALL
appliance.