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The following error is displayed when viewing the Top XX Endpoints resource in NTA:
Error while loading legend
The following error is also displayed when navigating to the Endpoint Details view for a specific endpoint.
Not a valid IPSort
All NTA versions
This occurs when the endpoint hostname has invalid characters. NTA complies with RFC 952 and valid characters for hostname are: [a-z][A-Z][0-9].-
Note: Simply replacing the hostname in the SQL database will not resolve the issue as the name will returned to the previous value after seven days.
Perform any of the following options to permanently resolve this:
Option 1 (preferred)
Rename the device in DNS so that the hostname is compliant with RFC 952. The next tine DNS name resolution is performed by NTA [default 7 days, Configurable from NTA Settings page] the correct hostname will be updated and the issue will be resolved.
Note: In the following example, the hostname with the issue is E:Aruba Wireless Controller. The ":" is the invalid character.
On the main server, use the URL: http://localhost/Orion/TrafficAnalys...%202%20Minutes (replace XXX with node ID that collect Flows with this IP address.