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Recently we have had two customers that received the following error message on their AOS servers running Windows Server 2016:
A request to allocate an ephemeral port number from the global TCP port space has failed due to all such ports being in use.
This is the result of the AOS running out of available TCP ports to use for communication with the network.
You can resolve this issue by adding the following entries to the AOS registry in HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters:
MaxUserPort REG_DWORD: 0000fffe (655534)
TcpMaxDataRetransmissions REG_DWORD: 00000005 (5)
TcpNumConnections REG_DWORD: 00fffffe (16777214)
TcpTimedWaitDelay REG_DWORD: 0000001e (30)
Once these registry entries have been created, reboot the AOS.
Microsoft Certified Technology Specialist Senior Information Systems Consultant-Dynamics AX More ...
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