Solutions

BCAAA debug log message: The client and server cannot communicate, because they do not possess a common algorithm

Solutions ID:    KB4082
Version:    1.0
Status:    Published
Published date:    10/06/2010
 

Problem Description

BCAAA debug message:  The client and server cannot communicate, because they do not possess a common algorithm
You are attempting to setup secure Proxy to BCAAA communications using SSL and:

- Attempting to browse users or groups in VPM shows the error: cannot communicate to agent

and

- The BCAAA debug logs show the error "The client and server cannot communicate, because they do not possess a common algorithm"

Resolution

This is caused when the BCAAA server has the local security policy FIPS compliant algorithms enabled.  The instructions below pertain to Microsoft Windows server 2003.

  1. On the BCAAA server run "secpol.msc"
  2. Navigate to Local Policies and Security Options.
  3. Double click System Cryptography: Use FIPS compliant algorithms for encryption, hashing, and signing.
  4. Disable the setting, and then click Apply.
  5. Restart the BCAAA service.

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