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When attempting to login to the ArcGIS Java Manager, the following error occurs:
“Incorrect Login Information”
This error occurs when the Local Security Policy on the ArcGIS Server has been modified to use NTLMv2 Authentication.
NTLMv2 support is available in ArcGIS Server version 9.3. To enable NTLMv2 authentication see the steps described in the linked article listed in the Related Information section below.