This articles refers to https://support.bioconnect.com/s/article/January-1-2021-Switchover-Issue.

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January 1, 2021 - Switchover Issue
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Updated 7:42pm EST January 1, 2020

BioConnect | GenetecBioConnect Enterprise
BCE-2021-0001: Server Matching Hotfix
January 1, 2021


BACKGROUND
A date handling error may result in fingerprint matching failures for some BioConnect Enterprise (BCE) customers, starting on January 1, 2021 (local time).  This primarily impacts BCE customers using fingerprint-based “Gen 1” access control devices, and a limited number of fingerprint-based “Gen 2” devices, when configured for 1-to-N server-matching.  This hotfix applies to all versions of BCE.  For support, please contact us at support@bioconnect.com.

DEPLOYMENT
The following four steps should be followed to correct any impacted BCE server(s):
  1. Connect to the server running BCE as an Administrator, open the Windows File Explorer, and navigate to the following directory:

    BCE version 4.x - 5.0:   C:\Program Files (x86)\BioConnect\BioConnect Services\BioMatch
    BCE version 1.x – 3.x:   C:\Program Files (x86)\Entertech Systems\BioConnect

     
  2. Make a backup copy of the UFMatcher.dll file located in that directory.
     
  3. Download and unzip an updated UFMatcher.dll file from the BioConnect support website:

      
    https://etscloud.entertechsystems.com/index.php/s/owViWJan8lONgl5/download
 
  1. Replace the existing UFMatcher.dll file with the updated version and restart your BCE services.
OPTIONAL:  If you wish to validate the integrity of the new UFMatcher.dll, the following file checksums can be used on the unzipped file:
            MD5:    de52591232c17a75ca82439cc246923c
 SHA256: a5173371ed3e5305a01ab87b9127657abe91984e15f2d0533bceb34ca9cfca21



ROLLBACK
A full rollback of this hotfix may be done by replacing the updated UFMatcher.dll with the original backup copy (see Step 2, above) and restarting your BCE services.