mmc wants strange tcp ports

Question

I tried to connect from Windows Server 2016 to Windows Server 2019 via mmc to see remote Taskscheduler and diskmgmt.
Connection failed
And Get-NetTCPConnection -remoteaddress <ip> shown something like this

for taskscheduler

for diskmgmt

Never seen mmc to use such ports before
So what are they used for and why mmc started to use them?

Answer 1

Hi @Grey Ink ,

Edit: Remote management via the Microsoft Management Console (MMC) and other legacy management tools use DCOM ports, by default DCOM assigns ports dynamically from the TCP port range of 1024 through 65535 on older systems, on newer 49152 to 65535.

When it's dynamic it could be anything in between and therefore the port used might be different sometimes.

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(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

Best regards,
Leon

Answer 2

Hi,

I also get the right ports range in my lab:

Try to restart machine and connect via MMC again, see whether the issue still occur.

Best Regards,
Candy

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