It is not listed as compatible with 2012R2. I didn't see a driver for the BCM5716C listed for 2012R2 on the T310 support page. If we do not provide a driver for a supported OS then it uses the native OS driver.
I am trying to upload the latest September 2019 drivers for some Broadcom BCM5716C NetXtreme II GigE ports that I have in my T310 running Win 2012R2 to hopefully get around a problem where the connection to the router drops for a couple of minutes several times a day. I have tried several other avenues to rectify the problem and am now grasping at straws. The drivers are available at [URL] and I have tried to download and install the Update Package for Microsoft® Windows® Network_Driver_CYKKJ_WN32_17.6.0_17.6.0.12_01.EXE but this fails with; [Fri Dec 6 21:45:04 2019] Update Package Execution Started[Fri Dec 6 21:45:04 2019] Original command line: "\\2008R2-File-Svr\o$\Software\Dell\T310 Server\NIC Driver\Network_Driver_CYKKJ_WN32_17.6.0_17.6.0.12_01.EXE"[Fri Dec 6 21:45:04 2019] DUP Framework EXE Version: 103.4.6.80[Fri Dec 6 21:45:04 2019] DUP Release: CYKKJX12-00[Fri Dec 6 21:45:04 2019] Initializing framework...[Fri Dec 6 21:45:04 2019] Data in smbios table is (hex)value = 91 , Chasis type (hex)value = 11 , System type is : Server[Fri Dec 6 21:45:04 2019] Server Infrastructure Detected...Proceeding with PM Module...[Fri Dec 6 21:45:04 2019] Querying Personality Module for data via ..GetPersonalityInfo()[Fri Dec 6 21:45:05 2019] Entered GetPersonalityInfo,Waiting for results...from PMDataCollector.lib->getPMInfo()[Fri Dec 6 21:45:05 2019] Obtained Personality Information[Fri Dec 6 21:45:05 2019] Manufacturers name :[Fri Dec 6 21:45:05 2019] Data Location :[Fri Dec 6 21:45:05 2019] Copied all Personality Information to Framework[Fri Dec 6 21:45:05 2019] Querying Personality Module Succeeded...[Fri Dec 6 21:45:05 2019] Retrieving relevant Values from Personality Module...[Fri Dec 6 21:45:05 2019] Client Brand Status:- DEFAULT[Fri Dec 6 21:45:06 2019] Brand Status DEFAULT...Header text DEFAULT[Fri Dec 6 21:45:28 2019] Brand Status DEFAULT...Image file DEFAULT[Fri Dec 6 21:45:28 2019] logo.png[Fri Dec 6 21:45:30 2019] User Command: attended[Fri Dec 6 21:45:30 2019] DUP Capabilities Value: 50331647 (0x2FFFFFF)[Fri Dec 6 21:45:30 2019] DUP Vendor Software Version: 17.6.0.0[Fri Dec 6 21:45:30 2019] Local System/Model Compatible with this Package? Yes[Fri Dec 6 21:45:30 2019] Local System OS Version: 6.3.0.0[Fri Dec 6 21:45:30 2019] OS Compatible with this Package? Unknown[Fri Dec 6 21:45:30 2019] Local System OS Language: Unknown[Fri Dec 6 21:45:30 2019] Language Compatible with this Package? Unknown[Fri Dec 6 21:45:30 2019] Identified Behavior : attended[Fri Dec 6 21:45:30 2019] Extraction-miniunz path: c:\PROGRA~3\dell\drivers\72CB95~1\miniunz.exe[Fri Dec 6 21:45:30 2019] Extraction-arguments: -x \\2008R2-File-Svr\o$\Software\Dell\T310SE~1\NICDRI~1\NETWOR~1.EXE -o -d c:\PROGRA~3\dell\drivers\72CB95~1[Fri Dec 6 21:45:31 2019] Extraction-GetExitCode: 0[Fri Dec 6 21:45:31 2019] Identified Behavior : attended[Fri Dec 6 21:45:31 2019] Temporary payload log file name: C:\ProgramData\dell\drivers\72cb95c7-e364-43a4-9728-1deca08c7658\DUPLogDir\DUPDEFD.tmp[Fri Dec 6 21:45:31 2019] Translated Command Line : /v"LOGFILE=\"C:\ProgramData\dell\drivers\72cb95c7-e364-43a4-9728-1deca08c7658\DUPLogDir\DUPDEFD.tmp\""[Fri Dec 6 21:45:31 2019] Path : C:\ProgramData\dell\drivers\72cb95c7-e364-43a4-9728-1deca08c7658[Fri Dec 6 21:45:31 2019] Identified Behavior : attended[Fri Dec 6 21:45:31 2019] (DupAPI::Execute): *** Executable mentioned in MUP.xml does not contain extension:[Fri Dec 6 21:45:31 2019] (DupAPI::ExecutePayload): *** An unexpected error occured executing[Fri Dec 6 21:45:31 2019] Brand Status DEFAULT...Image file DEFAULT[Fri Dec 6 21:45:31 2019] logo.png[Fri Dec 6 21:45:31 2019] Name of Exit Code: ERROR[Fri Dec 6 21:45:31 2019] Exit Code set to: 1 (0x1)[Fri Dec 6 21:45:31 2019] Result: FAILURE[Fri Dec 6 21:45:38 2019] Open file: C:\ProgramData\Dell\UpdatePackage\Log\Network_Driver_CYKKJ_WN32_17.6.0_17.6.0.12_01.txt Does it fail because I am using Win 2012R2 and not the earlier Win 2012 or 2008 OSs ? If so do I assume that everything that it is trying to fix is already fixed in the Win 2012R2 drivers ?    
Win64 driver update for NetXtreme Broadcom Ethernet adapters for the 17.6.0 u/d